To detect the presence of carbohydrate, proteins and starch in given compound A, B, and C.

Experiment – 15

Class – XII

Subject – Chemistry

Aim:-

To detect the presence of carbohydrate, proteins and starch in given compound A, B, and C.

Apparatus:-

Test tube, test tube stand, test tube holder, burner, beaker, litmus paper, match box, watch glass etc.

Test for Carbohydrates Group

Sr. No	Experiment	Observation		Inference
1.	Fehling’s Test: A small amount of Fehling ‘s solution was taken in test tube given organic compound was added & test tube was warmed	A red ppt was appear in compound A.		Carbohydrates confirmed
`2.	Schiff  Test: The given compound was dissolved in clean test tube & Schiff reagent was added.	Pink, red or magneta Color was appeared in compound A		Carbohydrates Confirmed.
3.	Tollen’s Test: Silver Nitrate solution was placed in test tube & dil. NaOH was also added to form brown ppt dil. Ammonia solution was added until the brown ppt dissolves the given liquid was added & test tube warmed.	A shiny silver mirror was appeared in compound A		Carbohydrates confirmed
	Test for Protein
1.	Xanthoprotic Test: Take about 2ml of egg albumin dispersion was taken a few drops of conc. H2So4 was added & then heated.		Yellow colored ppt was obtained in compound B.	Protein Confirmed.
2.	Biuret Test: Take egg albumin sample was taken & NaOH solution was added & few drops of cuSo4 solution was added to it.		Bluish violet color was appeared in compound B.	Protein confirmed.
3.	Millon’s Test: A small amount of egg albumin sample was taken & few drops of Millon’s reagent was added.		White ppt observed in compound B.	Protein confirmed.
	Test of Starch
1.	Iodine test: In the solution suspension add few drops of the Iodine solution.		Blue color was appear in compound C	Starch Confirmed.

 

Conclusion:

On the basis of above test we conclude that given compound contain.

Compound A       à           Contain Carbohydrate

Compound B       à            Contain Protein

Compound C       à            Contain Starch.

S. No.	Name of Experiment	Link
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2.	To determine the molarity and Strength of KMnO4 solution by treating with standard solution oxalic acid	Click Here
3.	To determine the molarity and strength of KMnO4 solution by treating with standard solution of Mohr’s Salt.	Click Here
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5.	To detect acid and Basic radical to given salt (In Strontium Chloride).	Click Here
6.	To detect acid and Basic radical to given salt (In Aluminum Chloride).	Click Here
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8.	To detect acid and basic radical in given salt (In Barium Nitrate).	Click Here
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10.	To detect the acid and basic radical in given salt (calcium Chloride).	Click Here
11.	To detect the presence of phenolic group in organic compound.	Click Here
12.	To detect the presence of carboxylic group in the given organic compound.	Click Here
13.	The distinguish between Aldehyde and Ketonic group in given compound A & B.	Click Here
14.	To detect the presence of Alcoholic group.	Click Here
15.	To detect the presence of Carbohydrate, Protein, Starch in given compound A, B, & C.	Click Here
16.	To prepare Potash alum from Scrap Aluminum.	Click Here