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Question: On adding KI to a solution of copper sulphate....

On adding KI to a solution of copper sulphate.

A

Cupric oxide is precipitated

B

Metallic copper is precipitated

C

Cuprous iodide is precipitated with liberation of iodine

D

No change occurs

Answer

Cuprous iodide is precipitated with liberation of iodine

Explanation

Solution

Cuprous iodide is precipitated with liberation of iodine.

2KI+CuSO4→CuI2+K2SO4+I22KI + CuSO_{4} \rightarrow CuI_{2} + K_{2}SO_{4} + I_{2}