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CHEMISTRYPROJECT
On
Determinationofthe content of cold
Drinks
PROJECTPREPAREDBY:
MAHIMA
SESSION: 2015-16
BOARD’SROLLNUMBER–
GITACONVENTSCHOOL
ACKNOWLEDGEMENT
It wouldbeamyutmostpleasuretoexpressmysincerethanks to
my chemistry teacher Mrs. MANJU IN PROVIDING A HELPING
HAND IN THIS PROJECT. The valuable guidance support and
supervisionallthroughthisprojecttitled“Determinationofthe
Contents of Cold Drinks” are responsible for attaining its
present form.
MAHIMA
XII
CERTIFICATE
Thisishereby to certifythat,the original and genuine investigation
work hasbeen carried out to investigateabout the subject matter and
the related data collection andinvestigation hasbeen completed solely,
sincerely and satisfactorily by MAHIMA OF GITA CONVENT SCHOOL
(FARIDABAD),regarding her project titled “Determination of the
convents of cold Drinks.”
Teacher’sSignature
AIM
COMPARITIVE STUDY AND QUALITATIVE
ANALYSIS OF DIFFERENT BRANDS OF COLD
DRINKSAVAILABLEIN MARKET
CONTENTS
I. Introduction
II. Theory
III. Apparatus
IV. Chemicalsrequired
V. Detectionofph
VI. Testforcarbondioxide
VII. Testforglucose
VIII. Testforphosphate
IX. Testforalcohol
X. Testforsucrose
XI. Result
XII. Conclusion
APPARATUS
TESTTUBE
TESTTUBEHOLDER
TESTTUBESTAND
STOPWATCH
BEAKER
BURNER
BURNER
PHPAPER
TRIPADSTAND
CHINADish
Wiregange
Waterbath
PURPOSE
In Recent Days soft drink brands were put into Various
questions Regarding Their Purity. News Flashed that
they contain harmful pesticide, which arouse interest in
knowing its content because I have been drinking them
foryears.I wanted tobrandsaretrueornot.
Anotherfactwhichinspiredme todothisprojectisthat I
amintouchwithqualitativeanalysis
Whoseknowledgewithotherfactorshelpedmetodoso.
INTRODUCTION
The era of cold drinks began in 1952 but the
industrialization in India marked its beginning with
launching of Limca and Gold spot by parley group of
companies. Sincethebeginningof cold drinkswashighly
profitable and luring many multinational companies
launched theirbrandsinIndiaLikePepsiand 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 Upto activate
pulseand brain.
THEORY
Colddrinks of differentbrands arecomposed of alcohol,
carbohydrates, carbon dioxide, phosphate ionsetc. These
Soft drinks give feeling of warmth, lightness and have a tangy taste
which is liked by everyone. Carbon is responsible for the formation of
froth on shakingthe bottle.
The carbon dioxide gasisdissolved iswaterto from carbonic acid
which isalso responsible forthetangy taste.
Carbohydrates are the naturally occurring organic compoundsandare
major source of energy to our body. General formula of carbohydrates
iscx(H2O)y.
On thebasis oftheirmolecularsize carbohydrates are classifiedas:-
Monosaccharide, disaccharides and polysaccharides . glucose is a
monosaccharide with formula C6H12 O6. Is occurs in free state in the
ripen grapes in bones and also in many sweet fruits. Is is also present in
human blood to the extent of about 0.1%. sucrose is one of the most
useful disaccharides in our dailylife .It iswidelydistributedin nature in
juices , seed sand also in flowers of many plants. The main source of
sucrose is sugarcane juice which contain 15-20%sucrose andsugarbeet
Which Has about 10-17% sucrose. The molecularformula of sucrose is
C12H22O11. It is produced by a mixture of glucose andfructose . It isnon
-reducing in nature and Where as glucose is reducing . colddrinksare a
bit acidic in nature and their acidity can be measured by finding their
PH value .the P.H values also depend upon the acidic contents such as
cirtric acid andphosphoric acid.
TEST FOR SUCROSE
EXPERIMENT
5mlSamplesOfeachBrandOfcolddrinks were taken in
separatechinadishesandwereheated very strong until
changesoccur.Blackcoloredresidue left confirmed the
presence of sucrose in cold drinks.
OBSERVATION
SR.NO. NAME OF THE
DRINK
OBSERVATION CONCLUSION
1 COCO COLA BLACK RESIDUE SUCROSEIS
PRESENT
2 SPRITE BLACK RESIDUE SUCROSEIS
PRESENT
3 LIMCA BLACK RESIDUE SUCROSEIS
PRESENT
4 FANTA BLACK RESIDUE SUCROSEIS
PRESENT
INFERENCE
All thebrandsofcolddrinkscontain sucrose. But amount of sucrose
variesin each brandofdrink. Fantacontainshighestamount of sucrose.
FEHING’SSOLUTIONTEST
Small samplesof cold drinksofdifferent brandswere takenin a test tube
and afew dropsof Fehling’sAsolution and Fehling’s B solution was
addedin equalamount.The test tube washeatedin a water bath for 10
minutes.Appearance of brown precipitate confirmed the presence of
glucose in cold drinks.
OBSERVATION
SR.NO NAME OF THE
DRINK
OBSERVATION CONLUSION
1 COCA COLA REDDISH
BROWN
PRECIPITATE
GLUCOSEIS
PRESENT
2 SPRITE REDDISH
BROWN
PRECIPITATE
GLUCOSEIS
PRESENT
3 LIMCA REDDISH
BROWN
PRECIPITATE
GLUCOSEIS
PRESENT
4 FANTA REDDISH
BROWN
PRECIPITATE
GLUCOSEIS
PRESENT
INFERENCE
All thesamplesgavepositivetestforglucosewithFehling’s(A GB)solutions.
Hence all the cold drinks contain glucose.
TEST FOR ALCOHAL
EXPERIMENT
Small samplesof cold drinksofdifferent brandswere takenin a test tube
and afew dropsof Fehling’sAsolution and Fehling’s B solution was
addedin equalamount.The test tube washeatedin a water bath for 10
minutes.Appearance of brown precipitate confirmed the presence of
glucose in cold drinks.
OBSERVATION
SR.NO NAME OF THE
DRINK
OBSERVATION CONLUSION
1 COCA COLA YELLOW
PRECIPITATE
ALCOHOL IS
PRESENT
2 SPRITE YELLOW
PRECIPITATE
ALCOHOL IS
PRESENT
3 LIMCA YELLOW
PRECIPITATE
ALCOHOL IS
PRESENT
4 FANTA YELLOW
PRECIPITATE
ALCOHOL IS
PRESENT
INFERENCE
All thesamplesgave positive test for glucose with Fehling’s(A GB)
solutions. Hence all the cold drinks contain glucose.
CHEMICALREACTIONINVOLVED
CH3CH2OH+6NAoH CHI3+HCOONa+5NaI+5H2O
RESULT
After conducting tests, it was concluded that the
differentbrandsof cold drinksnamely:
1.Cocacola
2.Sprite
3.Limca
4.Fanta
All contains glucose, alcohol, sucrose, phosphate and
carbon dioxide. All cold drinks are acidic innature.On
comparingthepttvalueof differentbrandscocacolais
the most acidic and limca is least acidic of all the four
brandstaken.
CARBONDIOXIDE
Among the four samples of cold drinks taken, sprite
has the maximum amount of dissolved carbondioxide
and fanta has the minimum amount of dissolved
carbondioxide
BJBIJOGRAPHY
LABORATORYMANUALOFCHEMISTERYBY
DINESHCOMPANIONCHEMISTRYBY–S.K
MALHOTRA
WEBSITES-WWW.WIKIPE

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Chemistry projet

  • 1. CHEMISTRYPROJECT On Determinationofthe content of cold Drinks PROJECTPREPAREDBY: MAHIMA SESSION: 2015-16
  • 2. BOARD’SROLLNUMBER– GITACONVENTSCHOOL ACKNOWLEDGEMENT It wouldbeamyutmostpleasuretoexpressmysincerethanks to my chemistry teacher Mrs. MANJU IN PROVIDING A HELPING HAND IN THIS PROJECT. The valuable guidance support and supervisionallthroughthisprojecttitled“Determinationofthe Contents of Cold Drinks” are responsible for attaining its present form. MAHIMA XII
  • 3. CERTIFICATE Thisishereby to certifythat,the original and genuine investigation work hasbeen carried out to investigateabout the subject matter and the related data collection andinvestigation hasbeen completed solely, sincerely and satisfactorily by MAHIMA OF GITA CONVENT SCHOOL (FARIDABAD),regarding her project titled “Determination of the convents of cold Drinks.”
  • 5. COMPARITIVE STUDY AND QUALITATIVE ANALYSIS OF DIFFERENT BRANDS OF COLD DRINKSAVAILABLEIN MARKET
  • 6. CONTENTS I. Introduction II. Theory III. Apparatus IV. Chemicalsrequired V. Detectionofph VI. Testforcarbondioxide VII. Testforglucose VIII. Testforphosphate IX. Testforalcohol X. Testforsucrose XI. Result XII. Conclusion
  • 8. TRIPADSTAND CHINADish Wiregange Waterbath PURPOSE In Recent Days soft drink brands were put into Various questions Regarding Their Purity. News Flashed that they contain harmful pesticide, which arouse interest in knowing its content because I have been drinking them foryears.I wanted tobrandsaretrueornot.
  • 10. The era of cold drinks began in 1952 but the industrialization in India marked its beginning with launching of Limca and Gold spot by parley group of companies. Sincethebeginningof cold drinkswashighly profitable and luring many multinational companies launched theirbrandsinIndiaLikePepsiand 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 Upto activate pulseand brain.
  • 11. THEORY Colddrinks of differentbrands arecomposed of alcohol, carbohydrates, carbon dioxide, phosphate ionsetc. These Soft drinks give feeling of warmth, lightness and have a tangy taste which is liked by everyone. Carbon is responsible for the formation of froth on shakingthe bottle. The carbon dioxide gasisdissolved iswaterto from carbonic acid which isalso responsible forthetangy taste. Carbohydrates are the naturally occurring organic compoundsandare major source of energy to our body. General formula of carbohydrates iscx(H2O)y. On thebasis oftheirmolecularsize carbohydrates are classifiedas:- Monosaccharide, disaccharides and polysaccharides . glucose is a monosaccharide with formula C6H12 O6. Is occurs in free state in the
  • 12. ripen grapes in bones and also in many sweet fruits. Is is also present in human blood to the extent of about 0.1%. sucrose is one of the most useful disaccharides in our dailylife .It iswidelydistributedin nature in juices , seed sand also in flowers of many plants. The main source of sucrose is sugarcane juice which contain 15-20%sucrose andsugarbeet Which Has about 10-17% sucrose. The molecularformula of sucrose is C12H22O11. It is produced by a mixture of glucose andfructose . It isnon -reducing in nature and Where as glucose is reducing . colddrinksare a bit acidic in nature and their acidity can be measured by finding their PH value .the P.H values also depend upon the acidic contents such as cirtric acid andphosphoric acid. TEST FOR SUCROSE EXPERIMENT 5mlSamplesOfeachBrandOfcolddrinks were taken in separatechinadishesandwereheated very strong until changesoccur.Blackcoloredresidue left confirmed the presence of sucrose in cold drinks.
  • 13. OBSERVATION SR.NO. NAME OF THE DRINK OBSERVATION CONCLUSION 1 COCO COLA BLACK RESIDUE SUCROSEIS PRESENT 2 SPRITE BLACK RESIDUE SUCROSEIS PRESENT 3 LIMCA BLACK RESIDUE SUCROSEIS PRESENT 4 FANTA BLACK RESIDUE SUCROSEIS PRESENT INFERENCE All thebrandsofcolddrinkscontain sucrose. But amount of sucrose variesin each brandofdrink. Fantacontainshighestamount of sucrose. FEHING’SSOLUTIONTEST
  • 14. Small samplesof cold drinksofdifferent brandswere takenin a test tube and afew dropsof Fehling’sAsolution and Fehling’s B solution was addedin equalamount.The test tube washeatedin a water bath for 10 minutes.Appearance of brown precipitate confirmed the presence of glucose in cold drinks. OBSERVATION SR.NO NAME OF THE DRINK OBSERVATION CONLUSION 1 COCA COLA REDDISH BROWN PRECIPITATE GLUCOSEIS PRESENT 2 SPRITE REDDISH BROWN PRECIPITATE GLUCOSEIS PRESENT 3 LIMCA REDDISH BROWN PRECIPITATE GLUCOSEIS PRESENT 4 FANTA REDDISH BROWN PRECIPITATE GLUCOSEIS PRESENT INFERENCE All thesamplesgavepositivetestforglucosewithFehling’s(A GB)solutions. Hence all the cold drinks contain glucose.
  • 15. TEST FOR ALCOHAL EXPERIMENT Small samplesof cold drinksofdifferent brandswere takenin a test tube and afew dropsof Fehling’sAsolution and Fehling’s B solution was addedin equalamount.The test tube washeatedin a water bath for 10 minutes.Appearance of brown precipitate confirmed the presence of glucose in cold drinks. OBSERVATION SR.NO NAME OF THE DRINK OBSERVATION CONLUSION 1 COCA COLA YELLOW PRECIPITATE ALCOHOL IS PRESENT 2 SPRITE YELLOW PRECIPITATE ALCOHOL IS PRESENT 3 LIMCA YELLOW PRECIPITATE ALCOHOL IS PRESENT 4 FANTA YELLOW PRECIPITATE ALCOHOL IS PRESENT INFERENCE All thesamplesgave positive test for glucose with Fehling’s(A GB) solutions. Hence all the cold drinks contain glucose.
  • 16. CHEMICALREACTIONINVOLVED CH3CH2OH+6NAoH CHI3+HCOONa+5NaI+5H2O RESULT After conducting tests, it was concluded that the differentbrandsof cold drinksnamely: 1.Cocacola 2.Sprite 3.Limca 4.Fanta All contains glucose, alcohol, sucrose, phosphate and carbon dioxide. All cold drinks are acidic innature.On comparingthepttvalueof differentbrandscocacolais the most acidic and limca is least acidic of all the four brandstaken.
  • 17. CARBONDIOXIDE Among the four samples of cold drinks taken, sprite has the maximum amount of dissolved carbondioxide and fanta has the minimum amount of dissolved carbondioxide BJBIJOGRAPHY LABORATORYMANUALOFCHEMISTERYBY DINESHCOMPANIONCHEMISTRYBY–S.K MALHOTRA