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Proteins when heated with cone. HNO3 giv...

Proteins when heated with cone. `HNO_3` gives a yellow colour. This Is

A

Oxidising test

B

Xanthoprotic test

C

Hoppe's test

D

Acid-base test

Text Solution

Verified by Experts

The correct Answer is:
B
Protein + conc. `HNO_3 to` Yellow colour
[This test is given by a protein which consists of a- amino acids containing a benzene ring such as tyrosine, phenylalanine etc. The yellow colour is due to nitration of benzene ring.]
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