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Question 770005
JEE Chemistry · Medium

Hydrocarbons: Free radical halogenation MCQ

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Free radical halogenationMediumQuestion 770005

Question

In free radical chlorination of propane, the major product is:
  1. A
    2-chloropropane
    Correct
  2. B
    1-chloropropane
  3. C
    Equal mixture
  4. D
    Propene

Correct answer

2-chloropropane

Explanation

Selectivity: 2° H atoms (on C2) are more readily abstracted than 1° H atoms (on C1 and C3). 2° radical is more stable. Propane has 2 × 2° H (on C2) and 6 × 1° H (on C1/C3). Even accounting for numbers, 2-chloro product is major.

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