A) \[C{{u}_{2}}O\] is colourless.
B) Copper (I) compounds are colourless except when colour results from charge transfer.
C) Copper (I) compounds are diamagnetic.
D) \[C{{u}_{2}}S\] is black.
Correct Answer: A
Solution :
[a] \[C{{u}_{2}}O\] is red in colour.
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