benzene Flashcards

(3 cards)

1
Q

give three pieces of evidences that contradict the old benzene model

A
  1. did not react with bromine like other alkenes
  2. Carbon, carbon double bonds and single bonds are not the same length
  3. enthalpy of hydrogenation for benzene was predicted to be -357, enthalpy of cyclohexene was -119
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2
Q

how did scientists prove that the bonds in benzene were the same lenghts

A
  • x ray crystallography
  • showed that the 6 carbon- crabon bonds were the same length
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3
Q
A
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