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In Kekule's structure, the C-C bonds are longer than C=C bonds, however in benzene all bonds are the same length.
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In Kekule's structure, the compound should have an enthalpy of hydrogenation of -360 kJmol-1, however benzene has an enthalpy of hydrogenation of higher value at -208kJmol-1. This means that benzene is more stable than Kekule's structure as more energy is required to hydrogenate it.
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Kekule's structure should be able to undergo addition reactions, for example reacting with Br2 (aq). However Benzene undergoes substitution reactions and will only react with Br2 (aq) in the presence of a halogen carrier catalyst.
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In Kekule's structure, the C-C bonds are longer than C=C bonds, however in benzene all bonds are the same length.
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In Kekule's structure, the compound should have an enthalpy of hydrogenation of -360 kJmol-1, however benzene has an enthalpy of hydrogenation of higher value at -208kJmol-1. This means that benzene is more stable than Kekule's structure as more energy is required to hydrogenate it.
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Kekule's structure should be able to undergo addition reactions, for example reacting with Br2 (aq). However Benzene undergoes substitution reactions and will only react with Br2 (aq) in the presence of a halogen carrier catalyst.