1. Tardigrade
  2. Question
  3. Chemistry
  4. If you touch concentrated HNO3 with your finger and immediately wash it with water, then the skin at the place where it came into contact with HNO3 becomes yellow. This is because of :

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. If you touch concentrated $HNO_3$ with your finger and immediately wash it with water, then the skin at the place where it came into contact with $HNO_3$ becomes yellow. This is because of :

The p-Block Elements - Part2

Solution:

Nitric acid attacks proteins forming a yellow nitro compound called xanthoprotein. It therefore, stains skin and renders wool yellow. This property is utilised for the test of proteins.