MCQMediumJEE Main 2026 · 21 January, Shift 1Isomerism (Structural, Stereoisomerism)

Chemistry Question from JEE Main 2026 · 21 January, Shift 1

A hydrocarbon 'P' (C4H8\text{C}_4\text{H}_8) on reaction with HCl gives an optically active compound 'Q' (C4H9Cl\text{C}_4\text{H}_9\text{Cl}) which on reaction with one mole of ammonia gives compound 'R' (C4H11N\text{C}_4\text{H}_{11}\text{N}). 'R' on diazotization followed by hydrolysis gives 'S'. Identify P, Q, R and S.

  • A

    P=CH₃-CH₂-CH=CH₂, Q=CH₃-CH₂-CH₂-CH₂Cl, R=CH₃-CH₂-CH₂-NH₂, S=CH₃-CH₂-CH(OH)CH₃

  • B

    P=CH₃-CH=CH-CH₃, Q=CH₃-CH₂-CH₂-CH₂-Cl, R=CH₃-CH₂-CH(NH₂)CH₃, S=CH₃-CH₂-CH₂-CH₂OH

  • C

    P=CH₃-CH=CH-CH₃, Q=CH₃-CH₂-CH(Cl)CH₃, R=CH₃-CH₂-CH(NH₂)CH₃, S=CH₃-CH₂-CH(OH)CH₃

  • D

    P=Cyclobutane, Q=Chlorocyclobutane, R=Cyclobutylamine, S=Cyclobutanol

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