Identify incorrect statement :
Show Hint
- \(\mathrm{Cu_2O}\) is colourless.
- Copper (I) compounds are colourless except when colour results from charge transfer.
- Copper (I) compounds are diamagnetic.
- \(\mathrm{Cu_2S}\) is black.
The Correct Option is A
Solution and Explanation
\(\mathrm{Cu_2S}\) is a black solid (statement 4 correct).
\(\mathrm{Cu_2O}\) is a red solid (the colour arises from charge transfer), so saying it is colourless is wrong.
Hence statement (1) is incorrect.
Answer: (1) \(\mathrm{Cu_2O}\) is colourless.
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