chemistry project on qualitative analysis of various soft drinks

This project placed here, is a result of the kind guidance, careful supervision and timely assistance rendered to me by our honorable chemistry teacher “Mr. A.K.Sinha”.

This project would not have been completed without the timely suggestion provided by our honorable teacher who carefully groomed and nurtured me throughout the academic year.

Special thanks go to my parents and family members for their constant support and a conductive congenial atmosphere for learning at home.

I am grateful to my principal who has encouraged me constantly.

All has provided me with all the facilities.

This is to certify that MILIND RAJ DIXIT of

class XIIth MATHS “A”, Roll No.

for the session of 2015-2016 has

effortlessly, successfully completed this

project in chemistry on “QUALITATIVE

ANALYSIS OF VARIOUS SOFT

DRINKS” in the partial fulfillment of the

practical examination in the

CHEMISTRY-AISSCE under my

guidance and the supervision. It is

recommended that it may be accepted

for the purpose of examination.

Head of Department

CHEMISTRY

About The Project

Aim Of The Project

Materials Required

Test Performed On Various Soft Drinks

Graph

Charring Test

Soft Drinks And Health

Conclusion

Bibliography

ABOUT THE PROJECT

My friends and I have found that the” Qualitative Analysis of various soft drinks” the most interesting and informative amount the list of projects in curriculum.

Several tests were done on various soft drinks brought in the school laboratory under the instructive guidance of our chemistry teacher ‘Mr. A.k.Sinha”.

We did the test for the presence of glucose, sucrose & ethyl alcohol. Charring tests were done to find time, amount of sugar content in the brands. The pH values of the drinks were found using pH scale provided.

Thus, we were able to compare the various brands of soft drinks and

thereby make graph to show accurate comparisons.

AIM OF THE PROJECT

The “Qualitative analysis of Various Brands Of Soft Drinks” aims at finding the various contents of the soft drinks.

We find their pH values and compare their effervescence time. Tests are done to detect the presence of Glucose, Sucrose and Ethyl Alcohol.

Charring tests are performed to compare the amount of sugar present in various soft drinks.

MATERIALS REQUIRED

Sample of Cold Drinks

pH papers

Stop Watch

Fehling’s Solution I & II

Benedict’s Solution

Dilute Hydrochloric acid

Sodium Hydroxide

Iodine solution

Test Tubes

Test Tube Holder

China dishes

Beakers

Petri dishes

TASTE : ORANGE

COLOR : ORANGE

PH Value : 2.5

Effervescence : 12 Sec

CHEMICAL ANALYSYS

SUCROSE TEST : PRESENT

Sample +dil HCL+ NAOH+ Benedict’s sol. Orange ppt

GLUCOSE TEST : PRESENT

Sample + Fehling’s sol. I & II red ppt.

ETHYL ALCOHOL TEST : PRESENT

Sample + Iodine sol. + NAOH Brown ppt.

TASTE : BITTER

COLOR : COLORLESS

PH Value : 3.4


CHEMICAL ANALYSYS

SUCROSE TEST : ABSENT

Sample +dil HCL+ NAOH+ Benedict’s sol. no ppt

GLUCOSE TEST : ABSENT

Sample + Fehling’s sol. I & II no ppt.

ETHYL ALCOHOL TEST : ABSENT

Sample + Iodine sol. + NAOH no ppt.

TASTE : LIGHT

COLOR : BLACKISH BROWN

PH Value : 3.1


CHEMICAL ANALYSYS






Sample + Iodine sol. + NAOH brown ppt.

TASTE : LEMON

COLOR : CREAMISH WHITE

PH Value : 3.1


CHEMICAL ANALYSYS







TASTE : ORANGE

COLOR : ORANGE

PH Value : 2.5


CHEMICAL ANALYSYS







TASTE : BITTER

COLOR : CHOCOLATE BROWN

PH Value : 2.5


CHEMICAL ANALYSYS







THE RESIDUE LEFT IN ALL BRANDS IS PUT INTO A PIE CHART

pH VALUE

LIMCASODAPEPSIGOLD SPOTTHUMS-UPMIRINDA

GRAPH OF pH values

GRAPH OF pH VALUES

THUMS-UP MIRINDA LIMCA PEPSI SODA GOLD SPOT0

0.5

1

1.5

2

2.5

3

3.5

4

3.1

2.5

3.5 3.4

3.8

2.5

pH VALUE

This is actually a heating test to find

the amount of residue left in various

soft drinks after heating. This

ultimately tells us about the level of

sugar present in various soft drinks.

In the test of the sample (5 ml) of

each soft drink is taken in separate

china dishes and heated for sufficient

time to dry it out. Then the residue

left is studied.

It was observed that the maximum

amount of residue was left in the

case of Gold Spot while minimum in

Soda.

Soft drinks provide large amounts of sugars (mostly high fructose corn syrup) to many individuals’ diet. The calories of soft drinks are likely to contribute to health problems, particularly overweight and obesity. Those conditions have become far more prevalent during the period in which soft drink consumption has soared. Several scientific studies have provided experimental evidences that soft drinks are directly related to the weight gain. The weight gain, in term is a prime risk factor for type 2 diabetes, which for the first time, is becoming a problem for teens as well as adults. As people get older, excess weight also contribute to heart attacks, strokes and cancer.

Frequent consumption of soft drinks may also increase the risk of osteoporosis especially in people who drink soft drinks instead of calcium rich milk. Dental experts urge the people to drink less soda pap, especially between meals, to prevent tooth decay (due to sugars) and dental erosion (due to acids).

Frequent consumers of soft drinks may also be at a higher risk of kidney stones and a slightly higher risk of heart disease. More research is needed in both of these areas.

Researches around the world has thus established beyond doubts that soft drinks consumption is injurious to health.

CONCLUSIONIn the end I would like to mention about the important results in this interesting and exciting project.

Most of the brands of the soft drinks are chemically very similar except the soda water which is actually carbonated water and cannot be considered as soft drink.

All the brands have glucose, sucrose and ethyl alcohol except soda. The difference lies only in the color, name of the brands and its flavor. This is the reason why everyone’s favorite brand keeps on changing and to satisfy the public, companies keep changing the colors and the flavors.

Comprehensive Chemistry by Dr. N.K.Verma.

Pradeep’s New Course Chemistry By S.C.Kheterpal.

ABC of Chemistry.

Lab Manual In Chemistry By Arya Book Depot.

chemistry project on qualitative analysis of various soft drinks

Documents