This document describes a chemistry project analyzing the contents of different brands of cold drinks. Tests were performed to detect the presence of glucose, carbon dioxide, phosphate, alcohol and sucrose. The pH was also measured. Results showed all drinks contained these components, though amounts varied between brands. Coca Cola had the lowest pH, making it the most acidic. Sprite had the most carbon dioxide while Fanta had the least. The project concluded by discussing both the disadvantages and uses of cold drinks.
Comparative study and qualitative analysis of different brands of cold drinksSaumyadeep Bora
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It's a Comparative study and qualitative analysis of different brands of cold drinks available in the market and side effects of cold drinks consumption are discussed here
Chemisry project on content of cold drinksRam Mehra
ย
Different types of cold drinks available on the Pontian market such as alcoholic drinks, Sprite, 100 Plus, Soya, Chrysanthemum Tea and Lemon Tea were analysed for its content (protein, vitamin C, alcohol, carbon dioxide, glucose, sucrose, pH value) with respective method
Comparative study and qualitative analysis of different brands of cold drinksSaumyadeep Bora
ย
It's a Comparative study and qualitative analysis of different brands of cold drinks available in the market and side effects of cold drinks consumption are discussed here
Chemisry project on content of cold drinksRam Mehra
ย
Different types of cold drinks available on the Pontian market such as alcoholic drinks, Sprite, 100 Plus, Soya, Chrysanthemum Tea and Lemon Tea were analysed for its content (protein, vitamin C, alcohol, carbon dioxide, glucose, sucrose, pH value) with respective method
study of contents of cold drinks.....
ideal for class 12 cbse students for their investigatory project.
pls send ur vauble feedacks to adilshamsudeen10@gmail.com
contact me @ 98476886**
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QUALITATIVE ANALYSIS OF DIFFERENT BRANDS OF COLD DRINKS AVAILABLE IN MARKETNishaanth Zurc
ย
In recent days, soft drink brands were put into various
questions regarding their purity. News flashed that they
contain harmful pesticide, which arouse many interest in
knowing its contents because I have been drinking them
for years. I wanted to confirm that whether the charge
impose on these brands are true or not.
Chemistry IP 12th CLASS { content of cold drinks }avneesh1234
ย
Topic:- content of cold drinks available in market CLASS XII
i faced a lot of difficulties to do this ip, atleast now u can be download and submit without any trouble
study of contents of cold drinks.....
ideal for class 12 cbse students for their investigatory project.
pls send ur vauble feedacks to adilshamsudeen10@gmail.com
contact me @ 98476886**
wish u all good luck and have a nice day
QUALITATIVE ANALYSIS OF DIFFERENT BRANDS OF COLD DRINKS AVAILABLE IN MARKETNishaanth Zurc
ย
In recent days, soft drink brands were put into various
questions regarding their purity. News flashed that they
contain harmful pesticide, which arouse many interest in
knowing its contents because I have been drinking them
for years. I wanted to confirm that whether the charge
impose on these brands are true or not.
Chemistry IP 12th CLASS { content of cold drinks }avneesh1234
ย
Topic:- content of cold drinks available in market CLASS XII
i faced a lot of difficulties to do this ip, atleast now u can be download and submit without any trouble
CHEMISTRY INVESTIGATORY PROJECT ON -
AIM:-
COMPARATIVE STUDY AND QUALITATIVE ANALYSIS OF DIFFERENT BRANDS OF COLD DRINKS AVAILABLE IN MARKET
PURPOSE:-
In recent days, soft drink brands were put into various questions regarding their purity. News flashed that they Contain harmful pesticide, which arouses many interests in knowing its contents because I have been drinking them for years I wanted to confirm that whether the charge imposed on these brands are true or not.
Another fact which inspired me to do this project is that I am in touch with qualitative analysis whose knowledge of other factors helped me to do so.
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3. AVAILABLE IN
MARKET.
PURPOSE
In recent days, soft drink brands were put into various
questions regarding their purity. News flashed that they
contain harmful pesticide, which arouse many
interest in knowing its contents because I have been
drinking them for years. I wanted to confirm that
whether the charge imposed on these brands are true or
not.
Another fact which inspired me to do this project is that I
am in touch with qualitative analysis whose
knowledge with other factors helped me to do so.
4. CONTENTS
I. Introduction
II. Theory
III. Apparatus
IV. Chemicals Required
V. Detection of pH
VI. Test for Carbon Dioxide
VII. Test for Glucose
VIII. Test for Phosphate
5. IX. Test for Alcohol
X. Test for Sucrose
XI. Result
XII. Conclusion
INTRODUCTION
The era of cold drinks began in 1952 but the
industrialization in India marked its beginning with
launching of Limca and Goldspot by parley group
of companies. Since, the beginning of cold drinks was
highly profitable and luring, many multinational
companies launched their brands in India like Pepsi and
Coke.
Now days, it is observed in general that majority of
people viewed Sprite, Miranda, and Limca to give
feeling of lightness, while Pepsi and Thumps Up to
activate pulse and brain.
6. THEORY
Cold drinks of different brands are composed of alcohol,
carbohydrates, carbon dioxide, phosphate ions etc. These soft drinks
give feeling of warmth, lightness and have a tangy taste which is liked
by everyone. Carbon dioxide is responsible for the formation of froth
on shaking the bottle.
The carbon dioxide gas is dissolved in water to form carbonic acid
which is also responsible for the tangy taste. Carbohydrates are the
naturally occurring organic compounds and are major source of energy
to our body. General formula of carbohydrates is
CX (H2O)Y.
On the basis of their molecule size carbohydrates are classified as:-
Monosaccharide, Disaccharides and Polysaccharides. Glucose is a
monosaccharide with formula C6H12O6 .It occurs in Free State in the
ripen grapes in bones and also in many sweet fruits. It is also present in
human blood to the extent of about 0.1%. Sucrose is one of the most
useful disaccharides in our daily life. It is widely distributed in nature
7. in juices, seeds and also in flowers of many plants. The main source of
sucrose is sugar cane juice which contain 15-20 % sucrose and sugar
beet which has about 10-17 % sucrose. The molecular formula of
sucrose is C12H22O11. It is produced by a mixture of glucose and
fructose. It is non-reducing in nature whereas glucose is reducing. Cold
drinks are a bit acidic in nature and their acidity can be measured by
finding their pH value. The pH values also depend upon the acidic
contents such as citric acid and phosphoric acid.
APPARATUS
๏ถ Test Tube
๏ถ Test Tube Holder
๏ถ Test Tube Stand
๏ถ Stop Watch
๏ถ Beaker
๏ถ Burner
๏ถ pH Paper
๏ถ Tripod Stand
๏ถ China Dish
๏ถ Wire Gauge
8. ๏ถ Water Bath
CHEMICAL
REQUIRED
๏Iodine Solution
๏Potassium Iodine
๏Sodium Hydroxide
๏Fehlingโs A & B Solution
๏Lime Water
๏ Concentrated HNO3
๏Benedict Solution
9. ๏Ammonium Molybdate
DETECTION OF PH
EXPERIMENT:
Small samples of cold drinks of different brands were taken in a test tube and put
on the pH paper. The change in the color of pH paper was noticed and was
compared with the standard pH scale.
OBSERVATION:
SR. NO.
NAME OF THE
DRINK
COLOUR
CHANGE
pH VALUE
1 COCA COLA PINK 2.5-3
2 SPRITE RED 3
3 LIMCA PINKISH 4
4 FANTA LIGHT ORANGE 3-4
10. INFERENCE:
Soft drinks are generally acidic because of the presence of citric acid and
phosphoric acid. pH values of cold drink of different brands are different due to
the variation in amount of acidic contents.
TEST FOR CARBON
DIOXIDE
EXPERIMENT:
As soon as the bottles were opened, one by one the sample was passed through
lime water. The lime water turned milky.
OBSERVATON:
SR.
NO.
NAME OF THE
DRINK
TIME TAKEN
(SEC.)
CONCLUSION
1 COCA COLA 26.5 CO2 IS PRESENT
2 SPRITE 21 CO2 IS PRESENT
3 LIMCA 35 CO2 IS PRESENT
4 FANTA 36 CO2 IS PRESENT
11. INFERENCE:
All the soft drinks contain dissolved carbon dioxide in water. The carbon dioxide
(CO2) dissolves in water to form carbonic acid, which is responsible for its tangy
taste.
CHEMICAL REACTION INVOLVED:
Ca(OH)2(s) + CO2(g) -----------๏ CaCO3(s) + H2O(s)
TEST FOR
GLUCOSE
EXPERIMENT
Glucose is a reducing sugar acid. Its presence is detected by the following test:-
1. BENEDICTSโS REAGENT TEST:-
Small samples of cold drinks of different brands were taken in a test tube and a
few drops of Benedictโs reagent were added. The test tube was heated for few
seconds. Formation of reddish color confirmed the presence of glucose in cold
drinks.
OBSERVATON
SR.
NO.
NAME OF THE
DRINK
OBSERVATION CONCLUSION
1 COCA COLA REDDISH COLOUR GLUCOSE IS
12. PRECIPITATE PRESENT
2 SPRITE
REDDISH COLOUR
PRECIPITATE
GLUCOSE IS
PRESENT
3 LIMCA
REDDISH COLOUR
PRECIPITATE
GLUCOSE IS
PRESENT
4 FANTA
REDDISH COLOUR
PRECIPITATE
GLUCOSE IS
PRESENT
INFERENCE
All the samples gave positive test for glucose with Benedictโs reagent. Hence all
the drinks contain glucose.
2. FEHLINGโS SOLUTION TEST
Small samples of cold drinks of different brands were taken in a test tube and a
few drops of Fehlingโs A solution and Fehlingโs B solution was added in equal
amount. The test tube was heated in a water bath for 10 minutes. Appearance of
brown precipitate confirmed the presence of glucose in cold drinks.
OBSERVATON
SR.
NO.
NAME OF THE
DRINK
OBSERVATION CONCLUSION
1 COCA COLA
REDDISH BROWN
PRECIPITATE
GLUCOSE IS
PRESENT
2 SPRITE
REDDISH BROWN
PRECIPITATE
GLUCOSE IS
PRESENT
3 LIMCA
REDDISH BROWN
PRECIPITATE
GLUCOSE IS
PRESENT
4 FANTA
REDDISH BROWN
PRECIPITATE
GLUCOSE IS
PRESENT
13. INFERENCE
All the samples gave positive test for glucose with Fehlingโs (A & B) solutions.
Hence all the cold drinks contain glucose.
TEST FOR
PHOSPHATE
EXPERIMENT
Small samples of each brand of cold drinks were taken in separate test tubes and
Ammonium Molybdate followed by concentrated Nitric Acid (HNO3) was added
to it. The solution was heated. Appearance of canary-yellow precipitate
confirmed the presence of phosphate ions in cold drinks.
OBSERVATON
SR.
NO.
NAME OF THE
DRINK
OBSERVATION CONCLUSION
1 COCA COLA
CANARY-YELLOW
PRECIPITATE
PHOSPHATE IS
PRESENT
2 SPRITE
CANARY-YELLOW
PRECIPITATE
PHOSPHATE IS
PRESENT
14. 3 LIMCA
CANARY-YELLOW
PRECIPITATE
PHOSPHATE IS
PRESENT
4 FANTA
CANARY-YELLOW
PRECIPITATE
PHOSPHATE IS
PRESENT
INFERENCE
All the soft drinks samples gave positive test for phosphate ions. Hence all the
cold drinks contain phosphate.
CHEMICAL REACTION INVOLVE:
NaHPO4 + 12(NH4)2MoO4 + 21HNO3 + 3H+ ----------๏
(NH4)3PO4.12MoO3 + 21HN4NO3 + 12H2O
TEST FOR ALCOHOL
EXPERIMENT
Small samples of each brand of cold drinks were taken in separate test tubes and
Iodine followed by Potassium Iodide and Sodium Hydroxide (NaOH) solution
was added to each test tube. Then the test tubes were heated in hot water bath for
30 minutes. Appearance of yellow colored precipitate confirmed the presence of
alcohol in cold drinks
OBSERVATION
SR.
NO.
NAME OF THE
DRINK
OBSERVATION CONCLUSION
1 COCA COLA
YELLOW
PRECIPITATE
ALCOHOL IS
PRESENT
2 SPRITE YELLOW ALCOHOL IS
15. PRECIPITATE PRESENT
3 LIMCA
YELLOW
PRECIPITATE
ALCOHOL IS
PRESENT
4 FANTA
YELLOW
PRECIPITATE
ALCOHOL IS
PRESENT
INFERENCE
All the cold drinks samples gave positive test for alcohol. Hence all the cold
drinks contain glucose.
CHEMICAL REACTION INVOLVED
CH3CH2OH + 4I2 + 6NaOH ------๏ CHI3 + HCOONa + 5NaI + 5H2O
TEST FOR SUCROSE
EXPERIMENT
5 ml samples of each brand of cold drinks were taken in separate china dishes
and were heated very strongly until changes occur. Black colored residue left
confirmed the presence of sucrose in cold drinks.
OBSERVATON
SR.
NO.
NAME OF THE
DRINK
OBSERVATION CONCLUSION
1 COCA COLA BLACK RESIDUE
SUCROSE IS
PRESENT
2 SPRITE BLACK RESIDUE
SUCROSE IS
PRESENT
16. 3 LIMCA BLACK RESIDUE
SUCROSE IS
PRESENT
4 FANTA BLACK RESIDUE
SUCROSE IS
PRESENT
INFERENCE
All the brands of cold drinks contain sucrose. But amount of sucrose varies in
each brand of drink. Fanta contains highest amount of sucrose.
RESULT
After conducting several tests, it was concluded that the different brands of cold
drinks namely:
1. Coca Cola
2. Sprite
3. Limca
4. Fanta
All contains glucose, alcohol, sucrose, phosphate and carbon dioxide. All cold
drinks are acidic in nature. On comparing the pH value of different brands Coca
Cola is the most acidic and Limca is least acidic of all the four brands taken.
CARBON DIOXIDE
17. Among the four samples of cold drinks taken, Sprite has the maximum amount of
dissolved carbon dioxide and Fanta has the minimum amount of dissolved carbon
dioxide.
CONCLUSION
DIS-ADVANTAGES OF COLD DRINKS
1. Soft drinks are little more harmful than sugar solution. As they contain
sugar in large amount which cause problems in diabetes patients.
2. Soft drinks can cause weight gain as they interfere with the bodyโs natural
ability to suppress hunger feeling.
3. Soft drinks have ability to dissolve the calcium so they are also harmful for
our bones.
4. Soft drinks contain โphosphoric acidโ which has a pH of 2.8. So they can
dissolve a nail in about 4 days.
5. For transportation of soft drinks syrup the commercial truck must use the
hazardous matter place cards reserved for highly consive material.
6. Soft drinks have also ability to remove blood so they are very harmful to
our body.
18. USES OF COLD DRINKS
1. Cold drinks can be used as toilet cleaners.
2. They can remove rust spots from chrome car humpers.
3. They clean corrosion from car battery terminals.
4. Soft drinks are used as an excellent โdetergentโ to remove grease from
clothes.
5. They can loose a rusted bolt.
BIBLIOGRAPHY
COMPREHENSIVE LABORATORY MANUAL OF
CHEMISTRY
BY- LAXMI PUBLICATIONS
LABORATORY MANUAL OF CHEMISTRY
BY- VEENA SURI
DINESH COMPANION CHEMISTRY
BY- S.K. MALHOTRA
WEBSITES โ