JEE Main · 2025 · Shift-IImediumHC-001

The number of optically active products obtained from the complete ozonolysis of the given compound is:

Hydrocarbons · Class 11 · JEE Main Previous Year Question

Question

The number of optically active products obtained from the complete ozonolysis of the given compound is: image

Options
  1. a

    22

  2. b

    00

  3. c

    11

  4. d

    44

Correct Answerb

00

Detailed Solution

Ozonolysis followed by reductive workup (\ceZn/H2O\ce{Zn/H2O}) cleaves each \ceC=C\ce{C=C} double bond oxidatively, replacing it with carbonyl (\ceC=O\ce{C=O}) groups. image None of the ozonolysis products contain a chiral center. Therefore, the number of optically active products = 0.

Key Points to Remember:

  • Ozonolysis cleaves π\pi bonds, converting \ceC=C\ce{C=C} to \ceC=O\ce{C=O}
  • A product is optically active only if it contains a chiral center
  • Ozonolysis in presence of Zn or Dimethyl sulphide is called reductive ozonolysis, it prevents further oxidation of aldehydes produced during ozonolysis.

image

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