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In the following pairs of halogen compounds, which compound undergoes faster S_(N)1 reaction? |
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Answer» Solution :The `S_(N)1` reaction procceeds through Stable Carbocation intermediate. GREATER is the Stability of Carbocation, greater is the reactivity. Thus order of reactivity of alkyl HALIDE is : `3^(@)R-X gt 2^(@)R-X gt 1^(@)R-X` (i)  will REACT faster because  is more stable.(ii)  REACTS faster due to the greater stability of `2^(@)` - carbocation as compared to `1^(@)` - carbocation.
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