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If there is no rotation of plane polarized light by a compound in a specific solvent, thought to be chiral, it may mean that:

  1. A
    the compound is certainly achiral
  2. B
    the compound is certainly meso
  3. C
    there is no compound in the solvent
  4. D
    the compound may be a racemic mixture

Solution & Step-by-step Explanation

A compound may show zero optical rotation if:It is achiral.It is a meso compound (internal compensation).It is a racemic mixture (external compensation of equal amounts of and enantiomers).Since the question asks what it "may mean" for a compound thought to be chiral, it most likely refers to a racemic mixture.

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If there is no rotation of plane polarized light by a compound in a specific solvent, thought to be chiral, it may mean that:
A
the compound is certainly achiral
B
the compound is certainly meso
C
there is no compound in the solvent
D
the compound may be a racemic mixture

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