A) \[{{N}_{2}}{{H}_{4}},\,\left( -2 \right)\]
B) \[AIN,\left( -\,3 \right)\]
C) \[{{\left( {{N}_{2}}{{H}_{5}} \right)}_{2}}S{{O}_{4}},\,\left( +2 \right)\]
D) \[KN{{O}_{2}},\left( +\,3 \right)\]
Correct Answer: C
Solution :
\[4x+10+\left( -2 \right)=0\] \[4x\,\,=\,\,-8,\,\,\text{ }x\,\,=\,\,-2\]
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