Iodine is formed when potassium iodide reacts with a solution of:

Z n S O_{4}

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C u S O_{4}

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{(N H_{4})}_{2} S O_{4}

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N a_{2} S O_{4}

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Solution

The correct option is B $C u S O_{4}$
$C u S O_{4} + 2 K I \to C u I_{2} + K_{2} S O_{4}$
$2 C u I_{2} \to 2 C u I + I_{2}$

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H_{2} S O_{4}

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