Which of the following statements regarding copper salts is not true?
Which of the following statements regarding copper salts is not true?
- A
Copper $(I)$ disproportionates to copper and copper $(II)$ ion in aqueous solution
- B
Copper $(I)$ can be stablised by the formation of insoluble complex compounds such as $CuCl_2^-$ and $Cu(CN)_2^-$
- C
Copper $(II)$ oxide is red powder
- D
None of these
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