Question Detail

CHM 102 Practice Questions Objective Question
Take CBT

Question

A protein solution on warming with concentrated HNO3 may turn yellow. This test is called :
Options
A Xanthoproteic test
Correct Answer
B Ninhydrin test
C Biuret test
D Million's test
Correct Answer

Option A is the correct answer.

Detailed Explanation

The xanthoproteic test involves warming protein with concentrated nitric acid, which gives a yellow color due to nitration of aromatic amino acids (tyrosine, tryptophan, phenylalanine).

Hint

Which test gives yellow color with nitric acid?

Question Info

Course: CHM 102
Topic: Practice Questions
Type: Objective
Difficulty: Not specified
Question 1563 of 1999
Previous Course Details Next