Assign A, B, C, D for the type of observation | vedclass

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(C) The reaction between $CuSO_4$ and excess $KCN$ proceeds as follows:$1$. Initially,a yellow-green precipitate of $Cu(CN)_2$ is formed,which is unst

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$C$. Clear / Colourless solution

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(C) The reaction between $CuSO_4$ and excess $KCN$ proceeds as follows:$1$. Initially,a yellow-green precipitate of $Cu(CN)_2$ is formed,which is unstable.$2$. It decomposes to form $CuCN$ (white precipitate) and cyanogen gas $(CN)_2$.$3$. In the presence of excess $KCN$,the $CuCN$ dissolves to form the stable,colourless complex $K_3[Cu(CN)_4]$.$4$. Therefore,the final observation for the reaction mixture is a clear/colourless solution.$5$. The correct assignment is $C$.

Assign $A, B, C, D$ for the type of observation in the following reaction:
$CuSO_4 + KCN \text{ (excess)} \longrightarrow K_3[Cu(CN)_4] + \frac{1}{2}(CN)_2$

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Assign $A, B, C, D$ for the type of observation in the following reaction:$CuSO_4 + KCN \text{ (excess)} \longrightarrow K_3[Cu(CN)_4] + \frac{1}{2}(CN)_2$