A) 0
B) - 1
C) 1
D) 2
Correct Answer: C
Solution :
\[\overset{+2\,\,\,\,\,\,}{\mathop{CuS{{O}_{4}}}}\,+2KI\] ? \[{{K}_{2}}S{{O}_{4}}+Cu{{I}_{2}}\] \[2\,Cu{{I}_{2}}\xrightarrow{\,}\overset{+\,1\,\,\,\,\,\,\,\,}{\mathop{C{{u}_{2}}{{I}_{2}}}}\,+{{I}_{2}}\]
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