Question

Answer with explanation....Don't give direct answer​

Answer 1

Answer:

[Cu (CN)4]³-

Explanation:

Copper sulphate reacts with KCN to form cupric cyanide which precipitates out firstly . ... This on reacting further with excess of KCN forms soluble complex K3[Cu (CN)4].

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Answer 2

Answer:

hey

Explanation:

B answer is correct

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