Chemistry - STEREO ISOMERISM Question with Solution | TestHub
ChemistrySTEREO ISOMERISMOPTICAL PURITY/ENANTIOMERIC EXCESS, POLARIMETER TUBE EXPERIMENTMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
Observe following structures and answer questions given below :
Which of the following is pair of diastereomers?
Options:
Answer:
A
Solution:
Structure II and III represent the same meso-(R,S) form of 2,3-butanediol.
Structure I represents the chiral (R,R) (or S,S) form.
Comparing I and III: one is (R,R) and the other is (R,S).
They are neither mirror images nor identical.
Therefore, I and III are diastereomers.
Hence, Option (A) is correct
Stream:JEESubject:ChemistryTopic:STEREO ISOMERISMSubtopic:OPTICAL PURITY/ENANTIOMERIC EXCESS, POLARIMETER TUBE EXPERIMENT
⏱ 2mℹ️ Source: QB
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