question_answer

Which one of these is not true for benzene?

A) It forms only one type of mono substituted product

B) There are three carbon-carbon single bond and three carbon-carbon double bonds

C) The heat of hydrogenation of benzene is less than the theoretical value

D) The bond angle between the carbon-carbon bonds is 120°

Correct Answer: B

Solution :

The structure of benzene is \[I=\int_{1}^{4}{{{\log }_{e}}}[x]dx\]                      \[=\int_{1}^{2}{{{\log }_{e}}}[x]dx+\int_{2}^{3}{{{\log }_{e}}[x]dx}++\int_{3}^{4}{{{\log }_{e}}}[x]dx\]