A) \[\frac{2}{3}\]
B) \[\frac{3}{2}\]
C) \[\frac{3}{5}\]
D) \[\frac{5}{2}\]
Correct Answer: D
Solution :
\[N{{a}_{2}}{{\overset{*}{\mathop{S}}\,}_{4}}{{O}_{6}}\] \[2+4x-12=0\] \[4x=10\]\[x=\frac{10}{4}\]\[x=\frac{5}{2}\].
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