Question

When HNO3 is dropped into the palm and washed with water it turns into yellow. It shows the presence of
A. NO2
B. N2O
C. NO
D. N2O5​

Answer 1

Answer:

N2O5.

Explanation:

When HNO3 is dropped on the palm and then washed with the water and it turns into yellow colour, it is because in the skin or any body part, protein is present.

When the HNO3 reacts with any protein, which in this case the hand which is keratinised so the protein which is present and it gives a yellow colour compound which is called xanthoprotein. Which contains N2O5.

Answer 2

Answer:

Nitric acid turns the skin yellow becoz it reacts with proteins giving a yellow compound called xanthoprotein.