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General Science Synthetic Materials - Discussion Page For Q.1520 | General Knowledge Questions and Answers | General Knowledge Free Online-Tests | LucentBlackBoard | LucentBlackBoard.com
Q: Deep blue colour is imparted to glass by the presence of
A. cupric oxide B. nickel oxide
C. cobalt oxide D. iron oxide

Answer and Explanation

Answer:cobalt oxide

Explanation:
There is no explanation...

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