Chemistry - STEREO ISOMERISM Question with Solution | TestHub
ChemistrySTEREO ISOMERISMABSOLUTE AND RELATIVE CONFIGURATIONHard2 minQB
ChemistryHardmatching list
Match the following :
Column I (Compound) | Column II (Number of stereocenter) |
|---|---|
(A) | (P) 4 |
(B) | (Q) 1 |
(C) | (R) 3 |
(D) | (S) Shows G.I. |
Options:
Answer:
D
Solution:
Ans. A S; B P, S; C S; D R, S.
Sol. A (2-bromocyclohexan-1-ol): C-1 (OH) and C-2 (Br) are stereocentres (2 centres - not listed); cis/trans forms exist, so it shows geometrical isomerism : S.
B (2,3,4,5-tetramethylcyclohexan-1-one): the four methyl-bearing ring carbons C-2, C-3, C-4 and C-5 each carry four different groups : 4 stereocentres; it also shows geometrical isomerism : P, S.
C (1,2-dimethylcyclopentane): C-1 and C-2 are stereocentres (2 centres - not listed); cis/trans forms exist : S.
D (2,3,5-trimethylcyclopentan-1-one): C-2, C-3 and C-5 are stereocentres : 3 stereocentres; cis/trans forms exist : R, S.
Stream:JEESubject:ChemistryTopic:STEREO ISOMERISMSubtopic:ABSOLUTE AND RELATIVE CONFIGURATION
⏱ 2mℹ️ Source: QB
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