Multiple choice

Which of the reactions can not be used to distinguish allyl bromide from n-propyl bromide?

  1. Shaking with an aqueous solution of AgNO3.

  2. Boiling with aqueous KOH solution followed by acidification with dil. HNO3 and addition of AgNO3 solution.

  3. Fusion with sodium metal followed by acidification with dil. HNO3 and addition of AgNO3 solution.

  4. Both options 2 and 3

  5. All are correct
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

On boiling with aqueous KOH solution, both allyl bromide and n-propyl bromide undergo hydrolysis, and hence give pale yellow precipitate of AgBr and fusion will convert both into NaBr and would subsequently give pale yellow precipitate of AgBr. Hence, option 2 and 3 both are correct.

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