Deep blue color is imparted to glass by the presence of which of the following?

A. Cobalt oxide
B. Nickel oxide
C. Cupric oxide
D. Iron oxide

Answer

Correct Answer: A. Cobalt oxide


Detailed About MCQs

Deep blue color is imparted to glass by the presence of Cobalt oxide. Cobalt oxide is a family of chemical compounds consisting of Oxygen and Cobalt atoms. Cobalt oxide appears as olive-green to red crystals. It is used extensively in the ceramics industry as an additive to create blue colored glazes.