CuSO4(aq.) M N + O<br>Then final products N and O are respectively. — d and f Block Elements Chemistry Question
Question
CuSO4(aq.) $\xrightarrow{\text{H}_2\text{S}\uparrow}$ M$\downarrow$ $\xrightarrow{\text{Excess of KCN}}$ N + O<br>Then final products N and O are respectively.
Answer: A
💡 Solution & Explanation
CuSO4(aq.) + H2S $\rightarrow$ CuS(black ppt) (M); CuS + KCN(excess) $\rightarrow$ [Cu(CN)4]^3- (N) + (CN)2$\uparrow$ (O)
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