A) \[C{{u}_{2}}{{I}_{2}}+{{K}_{2}}S{{O}_{4}}\]
B) \[C{{u}_{2}}{{I}_{2}}+{{I}_{2}}+{{K}_{2}}S{{O}_{4}}\]
C) \[Cu{{I}_{2}}+{{K}_{2}}S{{O}_{4}}\]
D) \[Cu{{I}_{2}}+{{I}_{2}}+{{K}_{2}}S{{O}_{4}}\]
Correct Answer: B
Solution :
\[CuS{{O}_{4}}+2KI\xrightarrow{{}}Cu{{I}_{2}}+{{K}_{2}}S{{O}_{4}}\] \[2Cu{{I}_{2}}\xrightarrow{{}}\underset{\begin{smallmatrix} Cuprous\text{ }iodide \\ white\text{ }ppt. \end{smallmatrix}}{\mathop{C{{u}_{2}}{{I}_{2}}}}\,\,\,+{{I}_{2}}\]
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