Q. Hair dyes contain
A) Copper nitrate
B) Gold chloride
C) Silver nitrate
D) Copper sulphate
Explanation
(c)
Silver nitrate is used in making hair dyes because it reduced to metallic silver and finely divided silver is black in colour.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.