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The R/S designation for the following st...

The R/S designation for the following stereoisomers of 1,3-Dibromo-2-methylbutane is :

A

2R, 3R

B

2R, 3S

C

2S, 3R

D

2S, 3S

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The correct Answer is:
A
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RESONANCE ENGLISH-STEREOISOMERISM-EXERCISE (PART II : NATIONAL STANDARD EXAMINATION IN CHEMISTRY (NSEC) STAGE-1)
  1. What are enantiomers

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  2. The number of all types of isomers of chlorobutane is :

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  3. (i) CH(2)=CH-CH(2)-CH=CH(2) (ii) CH(2)=CH-CH=CH-CH(3) (iii) CH(3)-...

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  4. The configurations of the carbon atoms C(2) and C(3) in the following ...

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  5. The compound that is chiral

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  6. The number of stereoisomers of compound CH(3)-CH=CH-CH(Br)CH(3) is :

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  7. The R/S designation for the following stereoisomers of 1,3-Dibromo-2-m...

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  8. Among the isomers of Dimethylcyclohexanes, the chiral ones are

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  9. Which one of the following compound has R configuration ?

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  10. The numer of optically active stereoisomers of tartaric acid, (HOOC.CH...

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  11. The above structures are related to each other as

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  12. Which of the following molecules cannot show geometric isomerism ?

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  13. 2-methylpentane is :

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  14. The two projection formulae that represent a pair of enantiomers are.

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  15. The Fischer projection formula that represents the following compounds...

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  16. Levonorgestrel is a commonly used contraceptive. The number of chiral ...

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  17. Number of stereoisomers possible for the following compound is

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  18. The numer of quaternary and chiral carbon atoms present in elatol, iso...

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  19. The Newman projection shown is the same as

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  20. The molecule in which all atoms are not coplanar is

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