A) + 4
B) + 3
C) + 2
D) - 2
Correct Answer: B
Solution :
\[\overset{*}{\mathop{{{H}_{2}}{{C}_{2}}{{O}_{4}}}}\,\] \[2+2x-2\times 4=0\]; \[2x=8-2=6\] \[x=\frac{6}{2}=+3\].You need to login to perform this action.
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