Deep blue colour is imparted to glass by the presence of
A. Cupric oxide
B. Nickel oxide
C. Cobalt oxide
D. Iron oxide
Answer: Option C
Solution (By Examveda Team)
Cobalt is a very intense glass colorant and very little is required to show a noticeable amount of colour. Colour of Cobalt glass is blue.This Question Belongs to General Knowledge >> General Science
glass is coloured by adding metal oxide or metal powder in molten glass. Depending on the metal glass take a particular colour. By adding cobolt metal we get blue colour glass and by copper we get blue to bluish green.