Question

Amount of sodium hydroxide to be taken during the confirmation test of proteins [ ] A) 2% B) 10% C) 5% D) 8%​

Answer 1

Explanation:

(a) 2%

Add 2ml of sodium hydroxide and 5 to 6 drops of copper sulfate solution to it. Shake the test tube gently to mix the ingredients thoroughly and allow the mixture to stand for 4 – 5 minutes. If there is the appearance of bluish- violet color, it indicates the presence of protein.