Which of the following statements regarding c | vedclass

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(C) $1$. Copper $(I)$ ions are unstable in aqueous solution and undergo disproportionation: $2Cu^+ (aq) \rightarrow Cu^{2+} (aq) + Cu (s)$. This state

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Copper $(II)$ oxide is a red powder.

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(C) $1$. Copper $(I)$ ions are unstable in aqueous solution and undergo disproportionation: $2Cu^+ (aq) \rightarrow Cu^{2+} (aq) + Cu (s)$. This statement is true.$2$. Copper $(I)$ can be stabilized by forming insoluble complexes like $[CuCl_2]^-$ or $[Cu(CN)_2]^-$. This statement is true.$3$. Copper $(II)$ oxide $(CuO)$ is a black powder,whereas Copper $(I)$ oxide $(Cu_2O)$ is a red powder. Therefore,the statement that Copper $(II)$ oxide is a red powder is false.

Which of the following statements regarding copper salts is not true?

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