Explanation: In SN1 reactions, reactivity depends on the stability of carbocation. Carbocation is same here, therefore, we will see the reactivity of leaving group. I- is a better leaving group because of being good nucleophile. Hence Sn1 reaction is faster in (CH3)3-I
(ii) When p-nitro-chloro benzene is heated with aq. NaOH at 443 K,then NO2 will replace Cl as a substitute. Then, after acidification due OH will replace NO2 as a substitute.
(iii) dextro and laevo rotatory isomers of butan-2-ol are difficult to separate by fractional distillation because of no difference in boiling points of these two rotatory isomers.
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