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ORGANIC CHEM - AROMATIC CHEM

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Total cards: 3•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (3)

#1
Front (Question)

What is the formula of benzene?

Back (Answer)

C6H6

#2
Front (Question)

What are the 3 pieces of evidence that support benzene over cyclohexa-1,3,5-triene?

Back (Answer)

• benzene doesn’t readily undergo addition reactions • all C-C bonds in benzene are the same length (which is between the length of a C-C bond and a C=C bond) • enthalpy of hydrogenation of benzene is 152 kJ mol^-1 less exothermic than the triene

#3
Front (Question)

Is cyclohexa-1,3-diene or cyclohexa-1,4-diene more stable? Why?

Back (Answer)

• in cyclohexa-1,3-diene delocalisation occurs because the double bonds are only 1 single bond apart so the electron clouds overlap • in cyclohexa-1,4-diene the double bonds are 2 single bonds apart so they’re far apart enough for the electron clouds to not overlap