Question

How do we do test the presence of protein in a food?

a. Adding iodine solution turns them blue
b. Such food leave greasy marks on paper
c. Adding copper sulphate and caustic soda turns them into violet
d. Can't test

Answer 1

Answer:

c

Explanation:

By adding copper sulphate and caustic soda as it turns the food into violet and violet colour indicates oresence of protein.

Answer 2

I am first

hope it helps_______________