Haloalkanes and Haloarenes · Class 12 · CBSE · Science Chemistry

Which of the following compounds is optically active?

Practice question from Haloalkanes and Haloarenes (Class 12 · CBSE · Science Chemistry), with the correct answer and a step-by-step solution.

easy · MCQ · Q-E9E9E0

Which of the following compounds is optically active?

  1. A.1-bromobutane
  2. B.2-bromobutaneCorrect answer
  3. C.1-bromo-2,2-dimethylpropane
  4. D.1-bromo-2-methylpropane

Solution

An organic compound is optically active if it contains a chiral carbon atom (a carbon bonded to four different groups). In 2-bromobutane, the C-2 carbon is bonded to a hydrogen, a bromine atom, a methyl group, and an ethyl group, making it chiral.

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