Question

(1)
Blue glass contains
(a) Fe203
(c) CuO
(b) UO2
(d) Sio2
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Answer 1

Answer: right answer is cuo  

option (c)

Explanation: Cobalt glass—known as "smalt" when ground as a pigment—is a deep blue colored glass prepared by including a cobalt compound, typically cobalt oxide or cobalt carbonate, in a glass melt.

Answer 2

Heyaa☺

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Blue glass contains CuO

Usually,the colour of copper is blue.

Option-(c).

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Hope you understand...✌