MCQMediumJEE Main 2025 · 28 January, Shift 2SN1 & SN2 Reactions

Chemistry Question from JEE Main 2025 · 28 January, Shift 2

The product B formed in the following reaction sequence is:

Reaction scheme: 1-(4-methylphenyl)prop-1-ene reacts with HCl to give the major product (A), which then reacts with AgCN to give the major product (B).
  • A
    First option: a 4-methylphenyl ring joined through a CH2 group to a secondary carbon that carries an isocyanide (-NC) group and a methyl group.
  • B
    Second option: a 4-methylphenyl ring joined through a CH2 group to a secondary carbon that carries an isocyanide (-NC) group and a methyl group.
  • C
    Third option: a 4-methylphenyl ring bonded directly to a secondary carbon that carries a cyano (-CN) group and a methyl group.
  • D
    Fourth option: a 4-methylphenyl ring bonded directly to a secondary carbon that carries an isocyanide (-NC) group and an ethyl group.

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