Q20 / 200 · WBJEE 2014 · Chemistry

The correct statement regarding the following compounds is Figure

  • A
    all three compounds are chiral
  • B
    only I and II are chiral
  • C
    I and III are diastereomers
  • Correct answer
    D
    only I and III are chiral

Solution

Figure $2-R, 3-R$ configuration, s0 it is a chiral compoundFigure $2-R, 3-S$ configuration has plane of symmetry or in other words, rotation of hall part is cancelled by the other half, so it is not a chiral compound.Figure $2-S, 3-S$ configuration, so it is also a chiral compound.

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

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