Which one of the following compounds will undergo the fastest sn1 reaction?

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Solution : Compound (B) will give `S_(N)1` reaction faster than compound (A) because `S_(N)1` reaction depends upon the stability of carbocation. Benzyl chloride on lonisation gives `C_(6)H_(5)overset(+)CH_(2)` carbocation which is resonance srabilised while the carbocation obtained from compound (A) is not stabilised by resonance. <br> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/ARH_NCERT_EXE_CHM_XII_C10_S01_064_S01.png" width="80%">

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