Q51 / 180 · AIIMS 2006 · Chemistry

Assertion : $\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_3\left(\mathrm{NH}_3\right)_3\right]$ does not show optical isomerism. Reason : It has a plane of symmetry.

  • Correct answer
    A
    If both assertion and reason are true and reason is the correct explanation of the assertion
  • B
    If both assertion and reason are true but reason is not the correct explanation of the assertion
  • C
    If assertion is true, but reason is false
  • D
    Both assertion and reason are false statements.

Solution

The essential requirement for a substance to be optically active is that the substance should not have a plane of symmetry in its structure.

Hence, the correct answer is option: 'A'.

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