CuSO_4 reacts with KCN solution and forms: | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) When $CuSO_4$ reacts with an excess of $KCN$ solution,it initially forms a precipitate of $Cu(CN)_2$,which is unstable and decomposes to form $CuC

Vedclass · Accepted Answer

$K_3[Cu(CN)_4]$

Vedclass · Answer

(A) When $CuSO_4$ reacts with an excess of $KCN$ solution,it initially forms a precipitate of $Cu(CN)_2$,which is unstable and decomposes to form $CuCN$ and cyanogen gas $(CN)_2$. The $CuCN$ then reacts with excess $KCN$ to form the stable complex $K_3[Cu(CN)_4]$. The overall balanced chemical equation is: $2CuSO_4 + 10KCN 	o 2K_3[Cu(CN)_4] + 2K_2SO_4 + (CN)_2$.

$CuSO_4$ reacts with $KCN$ solution and forms:

Similar Questions

Which of the following is a weak electrolyte in solution?

The colour of $CoCl_3 \cdot 5NH_3 \cdot H_2O$ is

The reaction of nitroprusside anion with sulphide ion gives purple colouration due to the formation of

$CuSO_4$ solution reacts with excess $KCN$ to give

Which of the following factors tends to increase the stability of metal ion complexes?

Vedclass Test Series

Exam Paper Generator

Online Exam Module