A) 4, - 2
B) 2, - 1
C) 3, - 1.5
D) 3, - 1
Correct Answer: A
Solution :
\[\overset{*}{\mathop{Fe}}\,{{S}_{2}}\] \[Fe\overset{*\,\,}{\mathop{{{S}_{2}}}}\,\] \[x-4=0\] \[4+2x=0\] \[x=+4\] \[2x=-4\] \[x=\frac{-4}{2}=-2\].
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