Which of the following statements about benzene is incorrect ? it is more reacti
ID: 521977 • Letter: W
Question
Which of the following statements about benzene is incorrect?
it is more reactive than 1,3,5-hexatriene
it requires high temepratures and pressure to add hydrogen to it
the carbon-carbon bond lengths are shorter than in ethene
the carbon-hydrogen bond lengths are all the same
its first heat of hydrogenation is endothermic
it is more reactive than 1,3,5-hexatriene
it requires high temepratures and pressure to add hydrogen to it
the carbon-carbon bond lengths are shorter than in ethene
the carbon-hydrogen bond lengths are all the same
its first heat of hydrogenation is endothermic
Explanation / Answer
Incorrect statements are:
it is more reactive than 1,3,5-hexatriene
(Benzene is most stable compound; in this all 3 double bonds are in resonance to form most stable hybrid structure and which is less reactive).
its first heat of hydrogenation is endothermic
(Heat of Hydrogenation of Benzene is exothermic process)
and all other statements are correct.
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