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Unit 4 Benzene MT

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Total cards: 4•Content version: v4•Public deck•Updated: 8/1/2026

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#1
Front (Question)

Name the compound.

Card front image
Back (Answer)

1,3-dimethylbenzene

#2
Front (Question)

The enthalpy change for the hydrogenation of cyclohexene to cyclohexane is -120kJmol-1. What would the expected enthalpy change for the hydrogenation of benzene be if it was cyclohexa-1,3,5-triene? Why is it different to this value?

Back (Answer)

-36kJmol-1. Benzene is more stable than cyclohexa-1,3,5-triene due to delocalisation of some of its electrons.

#3
Front (Question)

Name the compound.

Card front image
Back (Answer)

Nitrobenzene.

#4
Front (Question)

What is the mechanism for electrophilic substitution of NO2+ with benzene?

Back (Answer)

Card back image