B-5.Rank the following compounds in order of increasing rate of solvolysis (SN1) in aqueousacetone (slowest →fastest):(a)1,2,3(b)2,1,c)3,2,1(d,3,2B-6.When comparing the hydrogenation of benzene with that of a hypothetical 1,3,5-cyclohexa-triene, benzene ______ than the cyclohexatriene.(a)Absorbs 152 kJ/mol (36 kcal/mol) more heat(b)Absorbs 152 kJ/mol (36 kcal/mol) less heat(c)Gives off 152 kJ/mol (36 kcal/mol) more heat(d)Gives off 152 kJ/mol (36 kcal/mol) less heatB-7.The reactiongives as the major elimination product(c)Equalamounts of (a) and (b)(d)Neither (a) nor (b)B-8.Which one of the following is best classifed as a heterocyclic aromaticcompound?B-9.Which of the following has the smallest heat of combustion?
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