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JEE Main 2026 Jan 21 Shift 2, Chemistry Q15: Properties of Alkyl Halides (Halo Alkanes) & Aryl Halides (Halo Arenes)

JEE Main2026Jan 21, Shift 2Chemistry
Q.

Given below are four compounds:

(a) n-propyl choride

(b) iso-propyl chloride

(c) sec-butyl chloride

(d) neo-pentyl chloride

Percentage of carbon in the one which exhibits optical isomerism is:

  1. A

    52

  2. B

    56

  3. C

    46

  4. D

    40

Solution

Identify the chiral one: only sec-butyl chloride (2-chlorobutane, ) has a stereocentre at C-2; the other three lack four distinct groups on any carbon.

Molecular formula , molar mass g/mol. Mass of C .

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Concept behind this question

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