A) \[0\]
B) \[3/2\]
C) \[-3/2\]
D) \[1/2\]
Correct Answer: D
Solution :
\[{{C}_{6}}{{H}_{6}}(g)+\frac{15}{2}{{O}_{2}}(g)\xrightarrow{{}}6C{{O}_{2}}(g)\]\[+3{{H}_{2}}O(g)\] \[\Delta n=(6+3)-\left( 1+\frac{15}{2} \right)=+1/2\].
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