Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers?
(a) and
(b) and
(c) and
(d) and

Question

Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers? (a) and (b) and (c) and (d) and

TestHub · Accepted Answer

(a) cis- and trans-1-bromo-2-chlorocyclopropane: one centre retained, one inverted : diastereomers. (b) (2R,3R)- and (2S,3S)-2,3-dibromobutane: both centres inverted : enantiomers. (c) (R)- and (S)-lactic acid : enantiomers. (d) butan-1-ol and butan-2-ol: same formula, different connectivity : constitutional (positional) isomers.

Ans. (B) (a) Diastereomers (b) Enantiomers (c) Enantiomers (d) Constitutional isomers.

Chemistry - STEREO ISOMERISM Question with Solution | TestHub

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