Question
Chemistry Question on Organic Chemistry
Which of the following gives a positive test with ninhydrin ?
A
Cellulose
B
Starch
C
Polyvinyl chloride
D
Egg albumin
Answer
Egg albumin
Explanation
Solution
Ninhydrin is a test for amino acids. Egg albumin, which contains proteins (polymers of amino acids), gives a positive test with ninhydrin due to the reaction with amino groups.