this is a project for class 12 boards for chemistry subject on analysis of honey.it will be very helpful for students who are searching for chemistry project
Chemistry Investigatory Project of class 12th CBSENagesh Agrawal
This document appears to be a student project report analyzing the contents of different cold drink brands. It includes sections like the introduction, aim, theory, tests conducted to detect ingredients like carbon dioxide, glucose, phosphate, alcohol and sucrose. The results found that all drinks contained these ingredients. The conclusion compares the drinks and finds that Coca Cola is most acidic while Limca is least. Fanta contains the highest sucrose while Sprite has the most carbon dioxide. Potential disadvantages of cold drinks are also discussed.
Spoorthi Kulkarni, a class 12 student, conducted an investigatory physics project on the factors that affect the internal resistance of a cell. The factors studied were distance between electrodes, area of electrodes, temperature of electrolytes, and concentration of electrolyte. The results showed that internal resistance increases with distance between electrodes, and decreases with increasing area of electrodes, temperature of electrolytes, and concentration of electrolyte. The project follows the guidelines for the All India Senior Secondary Certificate Examination.
chemistry project on preparation of potash alumTarun Rana
This document is a student project report on preparing potash alum from aluminum scrap. It includes the student's name and school along with sections describing the aim, required materials, theoretical background, procedure, observations and results. The student was able to prepare potash alum from aluminum scrap with 86% yield by dissolving the aluminum in potassium hydroxide, precipitating and dissolving aluminum hydroxide with sulfuric acid, then cooling and crystallizing the potash alum.
TO STUDY THE QUANTITY OF CASEIN PRESENT IN DIFFERENT SAMPLES OF MILKAnkitSharma1903
This document is a certificate and report for a school science project on studying the quantity of casein in different milk samples. It was completed by Ankit Sharma, a class 12 student, under the guidance of his teacher Mr. S.C. Jatt. The report includes an introduction on milk and casein, the aim, requirements, procedure, observations, and conclusions of the experiment. It found that different milk samples contain varying percentages of casein, with buffalo milk containing the highest at 4.20% and cow milk the lowest at 3.00%.
This document describes an experiment to analyze various fruit juices for their nutritional content and acidity. Tests were performed on orange juice, apple juice, pomegranate juice, and guava juice to check for acidity, starch, carbohydrates, iron, and calcium. The results found that the juices were generally acidic, contained carbohydrates, iron, and calcium (except guava juice lacked calcium). The health benefits of each juice are also outlined. In conclusion, fruits and their juices provide important nutrients but should be consumed in moderation from reputable sources.
This document appears to be a student project report on investigating the relationship between input/output voltage and number of turns in the primary and secondary coils of a transformer. It includes sections on introduction, theory, apparatus, procedure, observations, conclusion, and bibliography. The key points are that the output voltage of a transformer depends on the ratio of turns in the secondary coil to the primary coil, and that there are losses between the input and output resulting in the transformer's efficiency being less than 100%.
Chemistry Investigatory Project of class 12th CBSENagesh Agrawal
This document appears to be a student project report analyzing the contents of different cold drink brands. It includes sections like the introduction, aim, theory, tests conducted to detect ingredients like carbon dioxide, glucose, phosphate, alcohol and sucrose. The results found that all drinks contained these ingredients. The conclusion compares the drinks and finds that Coca Cola is most acidic while Limca is least. Fanta contains the highest sucrose while Sprite has the most carbon dioxide. Potential disadvantages of cold drinks are also discussed.
Spoorthi Kulkarni, a class 12 student, conducted an investigatory physics project on the factors that affect the internal resistance of a cell. The factors studied were distance between electrodes, area of electrodes, temperature of electrolytes, and concentration of electrolyte. The results showed that internal resistance increases with distance between electrodes, and decreases with increasing area of electrodes, temperature of electrolytes, and concentration of electrolyte. The project follows the guidelines for the All India Senior Secondary Certificate Examination.
chemistry project on preparation of potash alumTarun Rana
This document is a student project report on preparing potash alum from aluminum scrap. It includes the student's name and school along with sections describing the aim, required materials, theoretical background, procedure, observations and results. The student was able to prepare potash alum from aluminum scrap with 86% yield by dissolving the aluminum in potassium hydroxide, precipitating and dissolving aluminum hydroxide with sulfuric acid, then cooling and crystallizing the potash alum.
TO STUDY THE QUANTITY OF CASEIN PRESENT IN DIFFERENT SAMPLES OF MILKAnkitSharma1903
This document is a certificate and report for a school science project on studying the quantity of casein in different milk samples. It was completed by Ankit Sharma, a class 12 student, under the guidance of his teacher Mr. S.C. Jatt. The report includes an introduction on milk and casein, the aim, requirements, procedure, observations, and conclusions of the experiment. It found that different milk samples contain varying percentages of casein, with buffalo milk containing the highest at 4.20% and cow milk the lowest at 3.00%.
This document describes an experiment to analyze various fruit juices for their nutritional content and acidity. Tests were performed on orange juice, apple juice, pomegranate juice, and guava juice to check for acidity, starch, carbohydrates, iron, and calcium. The results found that the juices were generally acidic, contained carbohydrates, iron, and calcium (except guava juice lacked calcium). The health benefits of each juice are also outlined. In conclusion, fruits and their juices provide important nutrients but should be consumed in moderation from reputable sources.
This document appears to be a student project report on investigating the relationship between input/output voltage and number of turns in the primary and secondary coils of a transformer. It includes sections on introduction, theory, apparatus, procedure, observations, conclusion, and bibliography. The key points are that the output voltage of a transformer depends on the ratio of turns in the secondary coil to the primary coil, and that there are losses between the input and output resulting in the transformer's efficiency being less than 100%.
Chemistry Investigatory Project Class XII AsanalMahathir
This document discusses potassium bisulphite as a food preservative. It describes how potassium bisulphite prevents microbial growth through the release of sulfur dioxide. Experiments were conducted to study the effects of varying concentration, temperature, and time on potassium bisulphite's preservative properties in fruit jam. The results showed that increasing concentration, lower temperature, and shorter time periods enhanced its effectiveness at preventing spoilage. Potassium bisulphite is a commonly used food preservative that helps extend the shelf life of various products.
This document appears to be a chemistry project file submitted by Nikhil Dwivedi, a class 12 science student, on the topic of studying food adulterants. The file includes a certificate, acknowledgements, index, objective, introduction on food adulteration and laws, and details of experiments conducted to detect adulterants in foods like oils, fats, sugar and spices. The introduction provides background on food adulteration issues and legislation in India and other countries to protect consumers from health risks of adulterated foods.
Chemistry project part 1 caseins in milk......AnuragSharma530
1) The document is a chemistry investigatory project report by Arpit Ranka studying the quantity of casein in different milk samples.
2) The aim was to study the quantity of casein in buffalo's milk, cow's milk, goat's milk, and sheep's milk.
3) The results found that goat's milk contained the highest percentage of casein at 3.67%, followed by buffalo's milk at 2.73%, then cow's milk at 1.64%.
Study of quantity of caesin present in different samples of milkNeelanjyan Dutta
This document is a chemistry investigatory project report submitted by a student. It examines the quantity of casein present in different milk samples. The introduction provides background on milk composition and casein. The experiment's aim was to study casein quantity in various milks. Samples of cow, goat, buffalo and Amul milk were tested. After precipitating and weighing the casein, observations showed the percentage of casein varied between samples, from 3.00% in cow milk to 4.20% in buffalo milk. The conclusion is that different milk samples contain different percentages of casein.
This document describes an experiment to study how the self-inductance of a coil depends on various factors. The factors that affect self-inductance are the number of turns in the coil, the coil area, coil length, and the core material. The experiment involves measuring the current through and brightness of a bulb connected in series with a coil across an AC source of varying frequency both with and without an iron core inserted. The results show that current and brightness decrease when an iron core is inserted and increase at lower frequencies, demonstrating how self-inductance depends on the factors studied.
cbse class 12th, chemistry investigatory projectNIKHIL DWIVEDI
This document appears to be a chemistry project file submitted by Nikhil Dwivedi, a class 12 science student, on the topic of studying food adulterants. The file includes a certificate, acknowledgements, index, objective, introduction on food adulteration and laws, and details of experiments conducted to detect adulterants in foods like oils, fats, sugar and spices. The introduction provides background on food adulteration issues and legislation in India and other countries to protect consumers from health risks of adulterated foods.
Chemistry investigatory project for everyoneApil Meena
This document is a research project report on analyzing the contents of different cold drink brands. It includes an introduction describing the motivation for the project. It then outlines the various experiments conducted to test the cold drinks for properties like pH, carbon dioxide, glucose, and alcohol. The results found that all drinks contained these components. Coca Cola had the lowest pH and highest acidity while Sprite had the most carbon dioxide. The conclusion states that while the drinks contain these ingredients, their frequent consumption can be harmful in large amounts.
TOPIC-To investigate the relation between the ratio of :-1. Input and outpu...CHMURLIDHAR
TOPIC-To investigate the relation between the ratio of :-1. Input and output voltage.2. Number of turnings in the secondary coil and primary coil of a self made transformer.
This document is a 22 page physics project file submitted by a student on the topic of a light dependent resistor (LDR). It includes an acknowledgement, aim, introduction, theory, apparatus required, procedure, observations, conclusions, and precautions. The project demonstrates how an LDR can be used to create a simple intruder alarm system that triggers a buzzer when a light beam is interrupted. Various applications of LDRs are discussed such as in street lamps, elevators, and light intensity meters.
The document is a physics investigatory project report by a 12th grade student on transformers. It includes an introduction to transformers, the theory behind their operation, the apparatus used, experimental procedure followed to investigate the relationship between input/output voltage and primary/secondary coil turns, uses of transformers, conclusions drawn, and sources cited. The student successfully completed the project under a teacher's guidance to fulfill curriculum requirements.
Physics investigatory project on Ohm's LawPrakhar Seth
This document describes an experiment to verify Ohm's Law and determine the resistivity of different metal wires. The experiment involves measuring the current through and potential difference across samples of iron, aluminum, manganese and copper wire. Observations are recorded in tables and used to calculate the resistivity of each wire based on its dimensions. The results show the resistivity increases in the order of copper, aluminum, iron and manganese. In conclusion, Ohm's Law held for each metal as the relationship between potential and current was linear.
This document describes the construction and application of a Wheatstone bridge circuit. It begins by introducing Wheatstone bridges and their inventor. It then discusses the key components of a Wheatstone bridge, including four resistors where one has an unknown value. The working principle is explained, where balancing the resistor ratios results in no current through the galvanometer. Example circuits are provided. Applications include measuring light, pressure, strain and more. Limitations include inaccuracies under unbalanced conditions and limited resistance ranges.
This document provides an overview of an alternating current (AC) generator. It includes sections on the principle, construction, theory of operation, circuit diagram, expression for induced electromotive force (emf), and applications. The key components of an AC generator are an armature coil that rotates in a magnetic field, slip rings to draw current from the rotating coil, and brushes that supply the output. As the coil rotates, the changing magnetic flux induces an alternating current in the coil. The maximum induced emf is expressed as ε = ε° sin(ωt). Applications include power generation and distribution, vehicles, appliances, and portable generators.
PREPARATION OF SOYBEAN MILK AND ITS COMPARISION WITH NATURAL MILKRajivSingh261
This document is a certificate certifying that Aditi Chauhan, a student of Class XII at D.A.V. Public School, has satisfactorily completed a required chemistry project on the preparation of soybean milk and its comparison to natural milk. The project included preparing soybean milk, comparing its taste to natural milk, examining the effect of temperature on curd formation in both milks, and analyzing the nutritional composition and health benefits of soybean milk versus natural milk. The document provides details of the project's procedure, observations, results, and conclusions drawn by Aditi in completing the required chemistry work.
FARADAY LAW OF ELECTROMAGNETIC INDUCTION CLASS 12 PROJECTAjay Kumar
This document is a physics investigatory project submitted by Ajaykumar of class XII-A on the topic of electromagnetic induction. The aim was to determine Faraday's law of electromagnetic induction using a copper wire wound around an iron rod and a strong magnet. The apparatus used included an insulated copper wire, an iron rod, a strong magnet, and a light emitting diode. The theory section explains magnetic flux, how a changing magnetic flux induces an electromotive force, and Faraday's law. The conclusion appreciates the profound impact of Faraday's law on applications ranging from power generation to mobile devices.
This document is a student science project report on analyzing the quantity of casein, a milk protein, in different milk samples. It includes sections introducing the topic, discussing the theory behind casein in milk, describing the experimental procedure, presenting observations of casein quantities in different milk brands, and concluding that Amul brand milk contains the highest percentage of casein. The student received guidance from their chemistry teacher for the project.
This document is a student science project report on analyzing the quantity of casein, a milk protein, in different milk samples. It includes sections introducing the topic, discussing the theory behind casein in milk, describing the experimental procedure, presenting observations of casein quantities in different milk brands, and concluding that Amul brand milk contains the highest percentage of casein. The student received guidance from their chemistry teacher for the project.
Chemistry Investigatory Project Class 12Self-employed
This document is a student's chemistry investigatory project report on studying the setting of cement mixtures over time. It includes an introduction on cement, the aim to study how cement mixtures with sand, fly ash, and time affect strength. The procedures take cement mixtures and tests their strength after 3, 7, and 30 days by attempting to break slabs. The results found that strength increased with longer setting time and mixtures with fly ash and limestone showed lower required weights to break after each time period compared to a sand-only mixture.
Project is from the chapter Electrochemistry . Project is based on the rusting of iron when coupled with different metals . One of the easiest projects in chemistry.
Please do like , share and comment if my work helped you ;)
Chemistry Investigatory Project Class XII AsanalMahathir
This document discusses potassium bisulphite as a food preservative. It describes how potassium bisulphite prevents microbial growth through the release of sulfur dioxide. Experiments were conducted to study the effects of varying concentration, temperature, and time on potassium bisulphite's preservative properties in fruit jam. The results showed that increasing concentration, lower temperature, and shorter time periods enhanced its effectiveness at preventing spoilage. Potassium bisulphite is a commonly used food preservative that helps extend the shelf life of various products.
This document appears to be a chemistry project file submitted by Nikhil Dwivedi, a class 12 science student, on the topic of studying food adulterants. The file includes a certificate, acknowledgements, index, objective, introduction on food adulteration and laws, and details of experiments conducted to detect adulterants in foods like oils, fats, sugar and spices. The introduction provides background on food adulteration issues and legislation in India and other countries to protect consumers from health risks of adulterated foods.
Chemistry project part 1 caseins in milk......AnuragSharma530
1) The document is a chemistry investigatory project report by Arpit Ranka studying the quantity of casein in different milk samples.
2) The aim was to study the quantity of casein in buffalo's milk, cow's milk, goat's milk, and sheep's milk.
3) The results found that goat's milk contained the highest percentage of casein at 3.67%, followed by buffalo's milk at 2.73%, then cow's milk at 1.64%.
Study of quantity of caesin present in different samples of milkNeelanjyan Dutta
This document is a chemistry investigatory project report submitted by a student. It examines the quantity of casein present in different milk samples. The introduction provides background on milk composition and casein. The experiment's aim was to study casein quantity in various milks. Samples of cow, goat, buffalo and Amul milk were tested. After precipitating and weighing the casein, observations showed the percentage of casein varied between samples, from 3.00% in cow milk to 4.20% in buffalo milk. The conclusion is that different milk samples contain different percentages of casein.
This document describes an experiment to study how the self-inductance of a coil depends on various factors. The factors that affect self-inductance are the number of turns in the coil, the coil area, coil length, and the core material. The experiment involves measuring the current through and brightness of a bulb connected in series with a coil across an AC source of varying frequency both with and without an iron core inserted. The results show that current and brightness decrease when an iron core is inserted and increase at lower frequencies, demonstrating how self-inductance depends on the factors studied.
cbse class 12th, chemistry investigatory projectNIKHIL DWIVEDI
This document appears to be a chemistry project file submitted by Nikhil Dwivedi, a class 12 science student, on the topic of studying food adulterants. The file includes a certificate, acknowledgements, index, objective, introduction on food adulteration and laws, and details of experiments conducted to detect adulterants in foods like oils, fats, sugar and spices. The introduction provides background on food adulteration issues and legislation in India and other countries to protect consumers from health risks of adulterated foods.
Chemistry investigatory project for everyoneApil Meena
This document is a research project report on analyzing the contents of different cold drink brands. It includes an introduction describing the motivation for the project. It then outlines the various experiments conducted to test the cold drinks for properties like pH, carbon dioxide, glucose, and alcohol. The results found that all drinks contained these components. Coca Cola had the lowest pH and highest acidity while Sprite had the most carbon dioxide. The conclusion states that while the drinks contain these ingredients, their frequent consumption can be harmful in large amounts.
TOPIC-To investigate the relation between the ratio of :-1. Input and outpu...CHMURLIDHAR
TOPIC-To investigate the relation between the ratio of :-1. Input and output voltage.2. Number of turnings in the secondary coil and primary coil of a self made transformer.
This document is a 22 page physics project file submitted by a student on the topic of a light dependent resistor (LDR). It includes an acknowledgement, aim, introduction, theory, apparatus required, procedure, observations, conclusions, and precautions. The project demonstrates how an LDR can be used to create a simple intruder alarm system that triggers a buzzer when a light beam is interrupted. Various applications of LDRs are discussed such as in street lamps, elevators, and light intensity meters.
The document is a physics investigatory project report by a 12th grade student on transformers. It includes an introduction to transformers, the theory behind their operation, the apparatus used, experimental procedure followed to investigate the relationship between input/output voltage and primary/secondary coil turns, uses of transformers, conclusions drawn, and sources cited. The student successfully completed the project under a teacher's guidance to fulfill curriculum requirements.
Physics investigatory project on Ohm's LawPrakhar Seth
This document describes an experiment to verify Ohm's Law and determine the resistivity of different metal wires. The experiment involves measuring the current through and potential difference across samples of iron, aluminum, manganese and copper wire. Observations are recorded in tables and used to calculate the resistivity of each wire based on its dimensions. The results show the resistivity increases in the order of copper, aluminum, iron and manganese. In conclusion, Ohm's Law held for each metal as the relationship between potential and current was linear.
This document describes the construction and application of a Wheatstone bridge circuit. It begins by introducing Wheatstone bridges and their inventor. It then discusses the key components of a Wheatstone bridge, including four resistors where one has an unknown value. The working principle is explained, where balancing the resistor ratios results in no current through the galvanometer. Example circuits are provided. Applications include measuring light, pressure, strain and more. Limitations include inaccuracies under unbalanced conditions and limited resistance ranges.
This document provides an overview of an alternating current (AC) generator. It includes sections on the principle, construction, theory of operation, circuit diagram, expression for induced electromotive force (emf), and applications. The key components of an AC generator are an armature coil that rotates in a magnetic field, slip rings to draw current from the rotating coil, and brushes that supply the output. As the coil rotates, the changing magnetic flux induces an alternating current in the coil. The maximum induced emf is expressed as ε = ε° sin(ωt). Applications include power generation and distribution, vehicles, appliances, and portable generators.
PREPARATION OF SOYBEAN MILK AND ITS COMPARISION WITH NATURAL MILKRajivSingh261
This document is a certificate certifying that Aditi Chauhan, a student of Class XII at D.A.V. Public School, has satisfactorily completed a required chemistry project on the preparation of soybean milk and its comparison to natural milk. The project included preparing soybean milk, comparing its taste to natural milk, examining the effect of temperature on curd formation in both milks, and analyzing the nutritional composition and health benefits of soybean milk versus natural milk. The document provides details of the project's procedure, observations, results, and conclusions drawn by Aditi in completing the required chemistry work.
FARADAY LAW OF ELECTROMAGNETIC INDUCTION CLASS 12 PROJECTAjay Kumar
This document is a physics investigatory project submitted by Ajaykumar of class XII-A on the topic of electromagnetic induction. The aim was to determine Faraday's law of electromagnetic induction using a copper wire wound around an iron rod and a strong magnet. The apparatus used included an insulated copper wire, an iron rod, a strong magnet, and a light emitting diode. The theory section explains magnetic flux, how a changing magnetic flux induces an electromotive force, and Faraday's law. The conclusion appreciates the profound impact of Faraday's law on applications ranging from power generation to mobile devices.
This document is a student science project report on analyzing the quantity of casein, a milk protein, in different milk samples. It includes sections introducing the topic, discussing the theory behind casein in milk, describing the experimental procedure, presenting observations of casein quantities in different milk brands, and concluding that Amul brand milk contains the highest percentage of casein. The student received guidance from their chemistry teacher for the project.
This document is a student science project report on analyzing the quantity of casein, a milk protein, in different milk samples. It includes sections introducing the topic, discussing the theory behind casein in milk, describing the experimental procedure, presenting observations of casein quantities in different milk brands, and concluding that Amul brand milk contains the highest percentage of casein. The student received guidance from their chemistry teacher for the project.
Chemistry Investigatory Project Class 12Self-employed
This document is a student's chemistry investigatory project report on studying the setting of cement mixtures over time. It includes an introduction on cement, the aim to study how cement mixtures with sand, fly ash, and time affect strength. The procedures take cement mixtures and tests their strength after 3, 7, and 30 days by attempting to break slabs. The results found that strength increased with longer setting time and mixtures with fly ash and limestone showed lower required weights to break after each time period compared to a sand-only mixture.
Project is from the chapter Electrochemistry . Project is based on the rusting of iron when coupled with different metals . One of the easiest projects in chemistry.
Please do like , share and comment if my work helped you ;)
- The document is a chemistry project submitted by a student named Tarun Malhotra analyzing samples of brass and bronze through qualitative analysis.
- It thanks various teachers and administrators for their support and contains an index of sections including introductions to alloys, common alloys like brass and bronze, how to prepare alloys, and descriptions of the qualitative analysis experiments performed on samples of brass and bronze.
- The experiments aimed to identify the metal constituents in the samples through chemical tests to detect copper and zinc in brass and tests for copper and tin in bronze.
This document appears to be a student's chemistry project report on studying the digestion of starch by salivary amylase and the effects of temperature and pH on this process. It includes sections on objectives, introduction, materials, procedures, observations, and conclusions for 3 experiments. The first experiment examines the digestion of starch by saliva over time. The second analyzes the impact of temperature. The third evaluates the impact of pH. The report was guided by a teacher and examines the student's investigation on how salivary amylase breaks down starch at different temperatures and pH levels.
Chemistry project on drugs addiction & abuseArpit Patel
Arpit Patel's chemistry investigatory project examines drugs addiction and abuse. It defines drug and addiction, then discusses how drug dependence can develop from repeated use of psychotropic drugs prescribed by doctors. It classifies major drug types like sedatives, opiates, stimulants and hallucinogens, and warns of dangers from mixing drugs and alcohol. The project also explores how addiction to tobacco, opium, ganja and alcohol can start and impact health.
This document is a project submitted by Ritu Kumari Mahato for their class 12 chemistry practical examination. It discusses drugs and their classification, the structures of some common drugs, how drug addiction begins, and the social impacts of smoking, drinking, and drug use. It also provides details on the sources and effects of tobacco, nicotine, and alcohol. The project contains acknowledgments, contents, and references sections.
Toothpaste contains three main ingredients: fluoride, abrasives, and surfactants. Fluoride helps strengthen tooth enamel through a process of remineralization. Abrasives such as calcium carbonate remove plaque and food remnants by polishing the teeth without damaging enamel. Surfactants loosen stuck food and plaque so toothpaste can remove them, working together with fluoride and the brushing action.
Rohan Sinha completed a chemistry investigatory project on biofuels under the guidance of his teacher Mrs. Vaishali Mishra and with help from his friends. The project included three activities: making biodiesel from vegetable oil through a transesterification process, testing the biodiesel and comparing it to other fuels by evaluating soot production and acidity, and discussing the potential for biofuels in India using non-edible plant oils like Jatropha curcas that can be grown in degraded lands.
Chemistry investigatory project on Effect of Metal Coupling on CorrosionReshop Nanda
The document describes an experiment on the corrosion of different metals and metal alloys in acidic and basic solutions. Key findings include:
- Brass and iron corroded most in acid, while brass and zinc corroded most in base. Aluminum corroded least in both.
- Coupling metals affected corrosion rates, with iron-aluminum coupling corroding most in acid and brass-aluminum in base.
- Corrosion is explained by the electrochemical process and metal reactivity based on their reduction potentials.
- Common corrosion protection methods are also outlined.
This document appears to be a chemistry project report submitted by a student. It investigates which substance (salt, sugar, or sand) causes ice cubes to melt the fastest when added. The procedure involves measuring the mass of melted water over time for ice cubes with each substance added. Calculations determine the percentage of ice melted for each substance. The results show that salt causes the greatest increase in melting percentage, followed by sugar then sand, indicating salt causes the greatest depression of the freezing point.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help boost feelings of calmness, happiness and focus.
This document is a chemistry demonstration file that summarizes an experiment on the electrolysis of potassium iodide. It includes an index, certificate of completion, acknowledgements, aim, apparatus used, theory on electrolysis and Faraday's laws of electrolysis. It describes the reactions involved including the preferential oxidation of iodide ions at the anode and hydrogen evolution at the cathode. Observations of violet color at the anode due to iodine and pink color at the cathode due to hydroxide ions are reported. Precautions for the experiment and conclusions that match the observations are provided.
Copy Of Determination Of The Contents Of Cold DrinksHimanshu Sagar
Himanshu Sagar, a class XII student, conducted a chemistry project to analyze the contents of different cold drink brands through qualitative analysis. Tests were performed to detect the presence of carbon dioxide, glucose, phosphate, alcohol and sucrose. The results showed that all drinks contained these components. Coca Cola was found to be the most acidic while Limca was the least. Sprite had the maximum carbon dioxide while Fanta had the minimum. The project concluded by discussing both the disadvantages and uses of cold drinks.
This document provides information on soft drinks, including:
1) A soft drink is a carbonated beverage that typically contains water, a sweetener, and flavoring. Common soft drinks are discussed, like Coca Cola, Pepsi, and 7Up.
2) The production process for soft drinks is described, including clarifying and filtering water, mixing ingredients, carbonating the beverage, filling containers, and quality control.
3) Potential issues like microbial spoilage from yeasts, bacteria, or molds are discussed, as well as methods to control contamination and microbial growth, such as using chemical preservatives or physical treatments like heat.
The document provides an overview of soft drinks, including their history, categories, ingredients and benefits. It discusses that the first soft drinks in the 17th century were non-carbonated drinks made from water, lemon juice and honey. Soft drinks are categorized as either carbonated or non-carbonated beverages, with common examples like colas and juices. While ingredients like carbonated water and caffeine provide some benefits, excessive consumption of soft drinks can increase risks such as weight gain, osteoporosis, and dental problems due to their sugar and acid content. The document also lists some of the most popular soft drink brands commonly consumed in India.
This document describes a student project measuring the solubility of sodium chloride, magnesium sulfate, and sucrose in water. The student followed an experimental procedure that involved adding incremental amounts of each solute to water until saturation was reached. Precautions were taken to ensure consistent temperature and stirring. The results found that sodium chloride had the highest solubility due to its small, dissociated ions, while sucrose had the lowest solubility due to its large molecular structure. Adding heat increased the solubility of all solutes by providing more kinetic energy to molecules. The conclusions and results aligned with chemical theories of solubility.
This document is a student's chemistry lab demonstration file on the topic of cement. It summarizes the student's procedures for creating cement mixtures with varying compositions and allowing them to set over different time periods. The strength of the cement mixtures was tested after 3, 7, and 30 days. The results showed that the strength of the cement mixtures increased with longer setting times. The student acknowledges the help received from their teacher and laboratory assistant.
These are the class 12 practicals held in cbse schools and it contains all the inorganic and organic salt tests in a simplified way and all the other experiments
This document is a chemistry project report submitted by Akshara Gupta to analyze the minerals and carbohydrates present in honey. The project was guided by Mrs. Manisha Sharma of Choithram School. Tests were conducted on a honey sample to check for potassium, calcium, magnesium, iron, reducing sugars, and reducing carbohydrates. The results showed the presence of potassium, iron, and reducing sugars/carbohydrates, and absence of calcium and magnesium. The student thanked those who helped in completing the project on time.
This document summarizes a chemistry investigatory project analyzing two brands of honey - Dabur and Alshifa. Tests were conducted to check for the presence of minerals like potassium, calcium, magnesium, and iron, as well as carbohydrates. Both brands tested positive for potassium and iron but negative for calcium and magnesium. Additionally, both showed the presence of reducing sugars and carbohydrates via Fehling's and Tollen's tests. The project was conducted by a class 11 student at Choithram School under the guidance of teachers Mrs. Varsha and Mr. Snehdeep.
The document is a chemistry project report submitted by Prashant Shukla analyzing the components of honey. It describes testing honey for the presence of minerals (potassium, calcium, magnesium, iron) and carbohydrates. The results found potassium and iron present, but calcium and magnesium absent. Testing also showed the presence of reducing sugars and reducing carbohydrates in honey. The project was completed under the guidance of Mr. M.P. Goswami at Jawahar Navodaya Vidyalaya school.
The document is an investigatory chemistry project report by Ashutosh Gupta analyzing the minerals and carbohydrates present in honey. The project tested a honey sample for various minerals like potassium, calcium, magnesium, and iron using different chemical tests. The tests showed potassium and iron were present while calcium and magnesium were absent. Carbohydrate tests revealed the presence of reducing sugars and reducing carbohydrates. The report includes the aim, requirements, procedures, observations, results, and bibliography of the project.
This document is a chemistry project report submitted by Tejasv Sharma to his teacher, Mrs. Chetna Tiwari. The report details Tejasv's analysis of different brands of honey found in the market. It describes the tests conducted to identify minerals and carbohydrates present in honey samples. Potassium, iron, and reducing sugars were found in the honey samples, but calcium and magnesium were absent. The report concludes by thanking those who helped and supported Tejasv in completing the project.
This document is a project report analyzing the composition of honey. It describes tests conducted to identify the presence of minerals and carbohydrates in a honey sample. Potassium and iron were found to be present through specific chemical reactions, while calcium and magnesium were absent. Reducing sugars were also identified using Fehling's and Tollen's tests. The project fulfills requirements for a 12th grade chemistry class and investigates the chemical properties of honey.
Milk is the best source of nutrition for all age groups in rural areas. It provides protein, fat, vitamins, and minerals. Milk production is led by the United States, India, and China. Adulteration of milk with substances like water, starch, urea, and detergent reduces its nutritional value and can harm health. The document describes procedures to detect common milk adulterants, including microorganisms, table sugar, starch, acids, soap, formalin, and ammonium sulfate, through chemical reactions and color changes.
This document provides an overview of proximate analysis to determine macronutrients like carbohydrates, proteins, fats, and moisture content. It discusses the classification, isolation, and various quantitative analysis methods for each macronutrient. Proximate or Weende analysis partitions food compounds into moisture, ash, crude protein, crude lipid, crude fiber, and nitrogen-free extract. Common techniques described include Kjeldahl method for protein, Soxhlet extraction for fat, gravimetric methods for carbohydrates, and determining ash content.
B. Bhuvanesh, a class 12 student, conducted a chemistry project to analyze honey under the guidance of his teacher Dr. Hari Darshan Tewari. The project involved testing honey samples for various minerals and carbohydrates. Tests were performed to check for the presence of potassium, calcium, magnesium, iron, and reducing sugars. The results showed that the honey sample contained potassium and iron, but not calcium or magnesium. Additionally, it tested positive for reducing sugars. The project was conducted to fulfill chemistry course requirements and the report was certified by the examiner.
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This document is a student project analyzing the contents of different brands of cold drinks. Through qualitative analysis experiments, the student tested Coca Cola, Sprite, Limca and Fanta for components like pH, glucose, phosphate, alcohol and sucrose. The tests showed that all drinks contained these components, though in varying amounts. For example, Coca Cola had the lowest pH and Fanta the highest sucrose. The conclusion discusses both advantages like refreshment and disadvantages like health impacts of regular cold drink consumption.
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1) The document presents the results of a comparative study and qualitative analysis of four brands of cold drinks (Coca Cola, Pepsi, Fanta, and Sprite).
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The document is a student project investigating the contents of various cold drink brands. Through a series of chemical tests, the student determined that all the drinks contained glucose, alcohol, sucrose, phosphate, and carbon dioxide. Additionally, all the drinks were acidic, with Coca Cola being the most acidic and Limca the least. Sprite contained the most carbon dioxide while Fanta contained the least. In conclusion, the tests revealed that while the drinks varied in their specific contents, they all contained the same core ingredients.
Chemistry Investigatory for class 12thiamtheanupam
The document summarizes a chemistry project analyzing the contents of different cold drink brands. The student conducted qualitative analyses to test for various components in drinks like Coca Cola, Sprite, Limca and Fanta. Tests showed the drinks contained glucose, alcohol, sucrose, phosphate and carbon dioxide. Coca Cola had the lowest pH, making it the most acidic. Sprite had the most carbon dioxide while Fanta had the least. The conclusion discusses both advantages and disadvantages of cold drink consumption.
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, the gravitational constant2
, deviations
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and general relativity7
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. Improved atom cooling and tilt-noise
suppression may further increase sensitivity for investigating forces at sub-millimetre
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, and testing whether the gravitational feld
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chemistry project for class 12 on analysis of honey
1. CHOITHRAM SCHOOL
CHEMISTRY PROJECT:
ANALYSIS OF HONEY
SUBMITTED BY:
AKSHARA GUPTA
XII –C
GUIDED BY:
MRS.MANISHA SHARMA
2014
2. This is to certify that AKSHARA GUPTA of class 12th has
successfully completed the project work on chemistry, titled as
“ANALYSIS OF HONEY”, for class XII practical examination
of the Central Board of Secondary Education in the year 2014-
2015. It is further certified that this project is the individual work
of the candidate.
Principal SUBJECT TEACHER
MR.RAJESH AWASTHI Mrs.MANISHA SHARMA
3. I hereby declare that the project work entitled “ANALYSIS OF
HONEY” submitted to the "CHOITHRAM SCHOOL ", is a
record of original work done by me except of the experiments,
which are duly acknowledged, under the guidance of my
subject teacher “Mrs.MANISHA SHARMA” ma’am.
4. I would like to express my special thanks to our school
‘CHOITHRAM SCHOOL’, principal sir Mr. ‘RAJESH
AWASTHI’, to the management team of our school who gave
me the golden opportunity to do this wonderful project on the
topic ANALYSIS OF HONEY, which also helped me in doing a
lot of Research and I came to know about so many new things.
Secondly I would also like to thank my parents and friends who
helped me a lot in finishing this project within the limited time.
THANKS AGAIN TO ALL WHO HELPED ME.
6. To analyze the
available honey for
presence of
different minerals
and carbohydrates.
7. APPARATUS
TEST TUBE
TEST TUBE STAND
BURNER
WATER BATH
CHEMICALS
FEHLING SOLUTION A
FEHLING SOLUTION B
AMMONIUM CHLORIDE SOLUTION
AMMONIUM OXALATE SOLUTION
AMMONIUM PHOSPHATE
CONC.NITRIC ACID
POTASSIUM SULPHOCYANIDE SOLUTION
8. Honey, thick, sweet, super saturated
sugar solution manufactured by bees
to feed their larvae and for the
subsistence during winter.
Bee honey is composed of
fructose, glucose and water, in varying
proportions. It also contains several
enzymes and OILS. The color & flavor
depends on the age of the honey and
the sources of the nectar .It colored
honeys are usually of higher quality
than dark coloured honeys. Other high
grade honeys are made by bees from
orange blossoms, clover and Alfalfa. A
well known, poorer grade honey is
produced from buckwheat.
9. Honey has a fuel value of about 3307
cal/kg [1520 cal/ lbs]. It readily picks up
moisture from the air and is
consequently used as a moistioning
agent for Tobacco and in baking.
Glucose crystallizes out of honey on
standing at room temperature, leaving
on uncrystallized layer of dissolved
fructose. Honey to be MARKETED is
usually heated by a special process to
about 66oC [150.01 F] to dissolve the
crystals and is sealed to prevent
crystallization. The fructose in
crystallized honey ferments readily at
about 160C.
10. TEST FOR MINERALS:-
1. Test for Potassium:-
2ml of honey is taken in a test tube
and picric acid solution is added.
Yellow precipitate indicates the
presence of K+.
2. Test for Calcium:-
2ml of honey is taken in a test tube
and NH4Cl solution and NH4OH
solution are added to it. The solution is
filtered and to the filtrate 2ml of
ammonium oxalate solution is added.
White ppt. or milkiness indicates the
presence of Ca2+ ions.
11. 3. Test for Magnesium:-
2 ml of honey is taken in a test tube
and NH4Cl solution is added to it and
then excess of Ammonium phosphate
solution is added. The side of the test-tube
is scratched with a glass rod.
White precipitate indicates the
presence of Mg2+ ions.
4. Test for Iron:-
2ml of honey is taken in a test tube
and a drop of conc. HNO3 is added
and it is heated. It is cooled and 2-3
drops of Potassium sulphocyanide
solution is added to it. Blood red colour
shows the presence of iron.
12. TEST FOR CARBOHYDRATES
1. Fehling`s test:
2ml of honey is taken in a test tube
and 1ml each of Fehling`s solution A
and Fehling`s solution B are added to
it and boiled. Red precipitate indicates
the presence of reducing sugars.
2. Tollen`s test:
2-3 ml of aqueous solution of honey is
taken in a test tube. 2-3ml of Tollen`s
reagent is added. The test tube is kept
in a boiling water bath for about ten
minutes. A shining silver mirror
indicates the presence of reducing
carbohydrates.
13. Substance taken: Honey
SL.
NO
TESTS OBSERVATION INFERENCE
1.
Test for
Potassium:-
Honey + Picric
acid solution
Yellow ppt.is
observed
Potassium is
present.
2.
Test for
Calcium:-
Honey + NH4Cl
soln. + NH4OH
soln. filtered +
(NH4)2C2O4
White ppt.or
milkiness is not
observed
Calcium is
absent.
3.
Test for
Magnesium:-
Honey+ NH4OH
(till solution
becomes alkaline)
+ (NH4)3Po4
White ppt.is not
observed
Magnesium
is absent.
14. 4.
Test for Iron:-
Honey+
conc.HNO3,
heated and
cooled, +
potassium
sulphocyanide
Blood red colour
is observed
Iron is
present.
5.
Fehling`s test:-
Honey + 1mL
each of Fehling`s
solution A and
Fehling`s solution
B
Red ppt. is
observed
Reducing
sugar is
present.
6.
Tollen’s test:-
Honey + 2-3mL
Tollen`s reagent,
test tube in water
bath for 10
minutes
Shining silver
mirror is
observed
Reducing
carbohydrate
is present
15. Potassium is present.
Iron is present.
Calcium is absent.
Magnesium is absent.
Honey contains reducing sugar.