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QAIPMT-2010-Ch-2032: NEET 2010 Chemistry - Class 12 AIPMT-2010-Ch-2032 Solution: Which one is most reactive towards \(S_N1\) reaction?

Which one is most reactive towards SN1S_N1 reaction?

Multiple Choice Options

  • A C6H5CH(C6H5)BrC_6H_5CH(C_6H_5)Br
  • B C6H5CH(CH3)BrC_6H_5CH(CH_3)Br
  • C C6H5C(CH3)(C6H5)BrC_6H_5C(CH_3)(C_6H_5)Br
  • D C6H5CH2BrC_6H_5CH_2Br

Step-by-Step Verified Solution

S N 1 reactions involve the formation of carbocations, hence higher the stability of intermediate carbocation, more will be reactivity of the parent alkyl halide. The tertiary carbocation formed from (c) is stabilized by two phenyl groups and one methyl group, hence most stable.

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