D-And F-Block Elements Ques 480

Question: CuSO4(aq.)H2SMof,KCNExcessN+O Then final products N and O are respectively.

Options:

A) [Cu(CN)4]3,(CN)2

B) CuCN,(CN)2

C) [Cu(CN)4]2,(CN)2

D) Cu(CN)2,K2S

Show Answer

Answer:

Correct Answer: A

Solution:

CuSO4(aq.)H2S2CuSBlanck,ppt.(M), ExcessKCN [Cu(N),(CN)4]3+(CN)2(O),



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