Give the decreasing order of `SN^1` reactions of the following compounds in `H_2 O`.
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Give the decreasing order of reactivity of the following compounds with HBr. (I)

Give the decreasing order of reactivity of the following compounds with HBr. (I)

Give the decreasing order of K_(a) value of the following compounds.

Correct order of SN2 reaction is :

Give the decreasing order of basic character at a,b,c,d in the following compounds : .

Give the decreasing order of SN^2 reactivity of the following alkoxide nucleophile. Me_3 CO^(Ө), MeCH_2O^(Ө), Me_2CHO^(Ө)

Pick up the correct order of reactivity of the following compounds in SN^1 reactions.

The decreasing order of reactivity of the following compound towards nucleophilic substitution (S_N 2) is