47363797 chemistry project on soft drink 120207021345 phpapp01

8/10/2019 47363797 Chemistry Project on Soft Drink 120207021345 Phpapp01

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CHEMISTRY PROJECT On Determination of the Contents Of

Cold DrinksPrepared By-Suneet Sahu


2/21

AIM

C !P"#"$%&'($)*+ ",*)".%$"$%&'

",".+(%( /*%//'#',$

B#",*( / C .*

*#%,0(

Project by Suneet Sahu


3/21

"&"%."B.' %,!"#0'$ .

"C0, 1.'*2'!',$

It would be my utmost pleasure to express my sincerethanks to My Chemistry Teacher Dr Shrinarayan

osta !"#D o$ chemistry% sir in pro&idin' a helpin'

hand in this project. Their &aluable 'uidance( supportand super&ision all throu'h this project titled) Determination of the Contents of Cold Drinks * ,are responsible $or attainin' its present $orm.

Suneet Sahu

3%%-"



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PURPOSE

In recent days( soft drink brands were put into

&arious +uestions re'ardin' their purity . ,ews$lashed that they contain harmful pesticide ( whicharouse many interest in knowin' its contents becauseI ha&e been drinkin' them $or years. I wanted tocon$irm that whether the char'e imposed on these

brands are true or not.

-nother $act which inspired me to do this project isthat I am in touch with qualitative analysiswhose knowled'e with other $actors helped me to doso.



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CONTENTS%4 %ntroduction

%%4 $heory

%%%4 "pparatus

%&4Chemicals #equired

&4 *etection of p5

&%4 $est for Carbon *ioxide6"cid7

&%%4 $est for 2lucose

&%%%4 $est for Phosphate%34 $est for "lcohol

34 $est for (ucrose

3%4 #esult

3%%4 Conclusion



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INTRODUCTION

The era o$ cold drinks be'an in /01 but theindustriali2ation in India marked its be'innin' withlaunchin' o$ .imca and 2oldspot by parleygroup o$ companies. Since( the be'innin' o$ colddrinks was hi'hly pro$itable and lurin'( manymultinational companies launched their brands inIndia like Pepsi and Coke .

,ow days( it is obser&ed in 'eneral that majority o$

people &iewed (prite ( !iranda ( and .imca to 'i&e$eelin' o$ li'htness( while Pepsi and $humps )pto acti&ate pulse and brain.



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TheoryCold drinks o$ di$$erent brands are composed o$ alcohol(carbohydrates( carbon dioxide( phosphate ions etc. These so$tdrinks 'i&e $eelin' o$ warmth( li'htness and ha&e a tan'y tastewhich is liked by e&eryone. Carbon dioxide is responsible $or the$ormation o$ $roth on shakin' the bottle.

The carbon dioxide 'as is dissol&ed in water to $orm carbonic acidwhich is also responsible $or the tan'y taste. Carbohydrates are the

naturally occurrin' or'anic compounds and are major source o$ener'y to our body. 3eneral $ormula o$ carbohydrates isC4 !" 1#%5 .

#n the basis o$ their molecule si2e carbohydrates are classi$ied as67

Monosaccharide( Disaccharides and Polysaccharides. 3lucose is amonosaccharide with $ormula C 8" 1# 8 .It occurs in 9ree State inthe ripen 'rapes in bones and also in many sweet $ruits. It is also

present in human blood to the extent o$ about :. ;. Sucrose is oneo$ the most use$ul disaccharides in our daily li$e. It is widelydistributed in nature in juices( seeds and also in $lowers o$ many

plants. The main source o$ sucrose is su'ar cane juice whichcontain 071: ; sucrose and su'ar beet which has about :7 < ;sucrose. The molecular $ormula o$ sucrose is C 1" 11# . It is

produced by a mixture o$ 'lucose and $ructose. It is non7reducin'in nature whereas 'lucose is reducin'. Cold drinks are a bit acidic

in nature and their acidity can be measured by $indin' their p"&alue. The p" &alues also depend upon the acidic contents such ascitric acid and phosphoric acid.



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C5'!%C".(#' )%#'*

%odine (olution

Pota ssium %odine

(odium 5ydroxide

/ehling8s " 9 B (olution

.ime 1ater

Concentrated 5, :

Benedict (olution

"mmonium !olybdate



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DETECTION OF PH

EXPERIMENT:Small samples o$ cold drinks o$ di$$erent brands were taken in a test tube and

put on the p" paper. The chan'e in the color o$ p" paper was noticed andwas compared with the standard p" scale.

OBSERVATION:

SR. NO. NAME O THEDRIN! CO"O#RCHAN$E %H &A"#E

C#C- C#=- PI, Almost '.(1 SP>IT? >?D Almost '.(@ =IMC- PI, IS" Almost '.(A 9-,T- =I3"T #>-,3? Almost '.(

INFERENCE:So$t drinks are 'enerally acidic because o$ the presence o$ citric acid and

phosphoric acid. p" &alues o$ cold drink o$ di$$erent brands are di$$erent dueto the &ariation in amount o$ acidic contents.



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TEST FOR CARBONDIOXIDE

EXPERIMENT:-s soon as the bottles were opened( one by one the sample was passedthrou'h lime water. The lime water turned milky.

OBSERVATON:

SR.NO.

NAME O THEDRIN!

TIME TA!EN)SEC.*

CONC"#SION

C#C- C#=- 18.0 C# 1 IS P>?S?,T1 SP>IT? 1 C# 1 IS P>?S?,T@ =IMC- @0 C# 1 IS P>?S?,TA 9-,T- @8 C# 1 IS P>?S?,T

INFERENCE:-ll the so$t drinks contain dissol&ed carbon dioxide in water. The carbondioxide !C# 1% dissol&es in water to $orm carbonic acid( which is responsible$or its tan'y taste.

CHEMICAL REACTION INVOLVED:

Ca(OH) 2 (s) + CO 2 (g) ----------- CaCO 3 (s) + H 2 O(s)

$'($ / # 2.)C (' Project by Suneet Sahu


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EXPERIMENT

3lucose is a reducin' su'ar acid. Its presence is detected by the $ollowin'test67

+. BENEDICTSS REA ENT TEST ,-Small samples o$ cold drinks o$ di$$erent brands were taken in a test tube anda $ew drops o$ Benedict s rea'ent were added. The test tube was heated $or$ew seconds. 9ormation o$ reddish color con$irmed the presence o$ 'lucosein cold drinks.

OBSERVATON

SR.NO.

NAME O THEDRIN!

O SER&ATION CONC"#SION

C#C- C#=- >?DDIS" C#=# > P>?CIPIT-T?

3= C#S? ISP>?S?,T

1 SP>IT? >?DDIS" C#=# >

P>?CIPIT-T?

3= C#S? IS

P>?S?,T@ =IMC- >?DDIS" C#=# > P>?CIPIT-T?

3= C#S? ISP>?S?,T

A 9-,T- >?DDIS" C#=# > P>?CIPIT-T?

3= C#S? ISP>?S?,T

INFERENCE-ll the samples 'a&e positi&e test $or 'lucose with Benedict s rea'ent. "enceall the drinks contain 'lucose.

'. FEHLIN S SOLUTION TEST Project by Suneet Sahu


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Small samples o$ cold drinks o$ di$$erent brands were taken in a test tube anda $ew drops o$ 9ehlin' s - solution and 9ehlin' s B solution was added ine+ual amount. The test tube was heated in a water bath $or : minutes.-ppearance o$ brown precipitate con$irmed the presence o$ 'lucose in colddrinks.

OBSERVATON

SR.NO.

NAME O THEDRIN!


+ COCA CO"A REDDISH RO/NPRECIPITATE

3= C#S? ISP>?S?,T

' SPRITE REDDISH RO/NPRECIPITATE 3= C#S? ISP>?S?,T

0 "IMCA REDDISH RO/NPRECIPITATE

3= C#S? ISP>?S?,T

1 9-,T- >?DDIS" B>#E,P>?CIPIT-T?

3= C#S? ISP>?S?,T

INFERENCE-ll the samples 'a&e positi&e test $or 'lucose with 9ehlin' s !- F B%solutions. "ence all the cold drinks contain 'lucose.

TEST FOR PHOSPHATE



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EXPERIMENTSmall samples o$ each brand o$ cold drinks were taken in separate test tubesand -mmonium Molybdate $ollowed by concentrated ,itric -cid !",# @%

was added to it. The solution was heated. -ppearance o$ canary7yellow precipitate con$irmed the presence o$ phosphate ions in cold drinks.

OBSERVATON

SR!NO!

NAME OFTHE DRIN"

OBSERVATION

CONCLUSION

# C#C- C#=- C-,->575?==#EP>?CIPIT-T?

PHOSPHATE ISPRESENT

$ SP>IT? C-,->575?==#EP>?CIPIT-T?

PHOSPHATE ISPRESENT

% =IMC- C-,->575?==#EP>?CIPIT-T?

PHOSPHATE ISPRESENT

& FANTA CANAR'( 'ELLO)

PRECIPITATE

PHOSPHATE ISPRESENT

INFERENCE-ll the so$t drinks samples 'a&e positi&e test $or phosphate ions. "ence allthe cold drinks contain phosphate.

CHEMICAL REACTION INVOLVED: ,a"P# A G 1!," A%1Mo# A G 1 ",# @ G @"G 7777777777 !," A%@P# A. 1Mo# @G 1 ", A ,# @ G 1" 1#

$'($ / # ".C 5 .EXPERIMENT



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Small samples o$ each brand o$ cold drinks were taken in separate test tubesand Iodine $ollowed by Potassium Iodide and Sodium "ydroxide !,a#"%solution was added to each test tube. Then the test tubes were heated in hotwater bath $or @: minutes. -ppearance o$ yellow colored precipitatecon$irmed the presence o$ alcohol in cold drinks

OBSERVATON

SR.NO.

NAME OTHE DRIN!


C#C- C#=- 5?==#EP>?CIPIT-T?

-=C#"#= ISP>?S?,T

1 SP>IT? 5?==#E

P>?CIPIT-T?

-=C#"#= IS

P>?S?,T@ =IMC- 5?==#E

P>?CIPIT-T?-=C#"#= IS

P>?S?,TA 9-,T- 5?==#E

P>?CIPIT-T?-=C#"#= IS

P>?S?,T

INFERENCE

-ll the cold drinks samples 'a&e positi&e test $or alcohol. "ence all the colddrinks contain 'lucose.

CHEMICAL REACTION INVOLVEDCH 3 CH 2 OH + 4I 2 + 6NaOH ------ CHI 3 + HCOONa + 5NaI + 5H 2 O

$'($ / # ()C# ('

EXPERIMENT



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0 ml samples o$ each brand o$ cold drinks were taken in separate chinadishes and were heated &ery stron'ly until chan'es occur. Black coloredresidue le$t con$irmed the presence o$ sucrose in cold drinks.

OBSERVATONSR.NO.

NAME OTHE DRIN!


C#C- C#=- B=-C >?SID ? SUCROSE ISPRESENT

1 SP>IT? B=-C >?SID ? SUCROSE ISPRESENT

@ =IMC- B=-C >?SID ? SUCROSE ISPRESENT

1 ANTA "AC! RESID#E SUCROSE ISPRESENT

INFERENCE-ll the brands o$ cold drinks contain sucrose . But amount o$ sucrose &aries

in each brand o$ drink. 9anta contains hi'hest amount o$ sucrose.

#'().$ Project by Suneet Sahu


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-$ter conductin' se&eral tests( it was concluded that the di$$erent brands o$cold drinks namely6

. Coca Cola1. Sprite@. =imcaA. 9anta

-ll contains 'lucose( alcohol( sucrose( phosphate and carbon dioxide. -llcold drinks are acidic in nature. #n comparin' the p" &alue o$ di$$erent

brands Coca Cola is the most acidic and =imca is least acidic o$ all the $our brands taken.

CARBON DI OXIDE-mon' the $our samples o$ cold drinks taken( Sprite has the maximumamount o$ dissol&ed carbon dioxide and 9anta has the minimum amount o$dissol&ed carbon dioxide.

CONCLUSION Project by Suneet Sahu


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DIS-ADVANTAGES OF COLDDRINKS

. So$t drinks are little more harm$ul than su'ar solution. -s they containsu'ar in lar'e amount which cause problems in diabetes patients.

1. So$t drinks can cause wei'ht 'ain as they inter$ere with the body snatural ability to suppress hun'er $eelin'.

@. So$t drinks ha&e ability to dissol&e the calcium so they are alsoharm$ul $or our bones.

A. So$t drinks contain )phosphoric acid* which has a p" o$ 1.H. So theycan dissol&e a nail in about A days.

0. 9or transportation o$ so$t drinks syrup the commercial truck must usethe ha2ardous matter place cards reser&ed $or hi'hly consi&e material.

8. So$t drinks ha&e also ability to remo&e blood so they are &ery harm$ulto our body.


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OMPREHENSIVE LABORATORY MANUAL OFCHEMISTRYBY- LAXMI PUBLI ATIONS

LABORATORY MANUAL OF HEMISTRYBY- VEENA SURI

DINESH OMPANION HEMISTRYBY- S. . MALHOTRA

!EBSITES "

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### .g ((g* '.%()

### .#$+$, ' $ a.%()

### . /(0' g( /.%()

http://www.icbse.com/http://www.google.com/http://www.wikipedia.com/http://www.icbse.com/http://www.google.com/http://www.wikipedia.com/


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