A) \[ZnS{{O}_{4}}\]
B) \[CuS{{O}_{4}}\]
C) \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\]
D) \[N{{a}_{2}}S{{O}_{4}}\]
Correct Answer: B
Solution :
\[CuS{{O}_{4}}+2KI\,\to \,Cu{{I}_{2}}+{{K}_{2}}S{{O}_{4}}\] \[2Cu{{I}_{2}}\,\to \,\underset{\text{Cuprous iodide}\,\,\,\,\,\,\,\,\,\,}{\mathop{2CuI\,\,\,\,\,\,\,+\,\,\,\,\,{{I}_{2}}}}\,\]
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