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How many optically active stereoisomers ...

How many optically active stereoisomers are possible for butane-2, 3-diol ?

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
B
There are three stereomers i.e., dectro `(+)`, laevo `(-)` and meso. But only first two are optically active.
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DINESH PUBLICATION-ALCOHOLS AND PHENOLS-Straight Objective Type
  1. Which of the following reactions will yield propan-2-ol ? Select the r...

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  2. How many optically active stereoisomers are possible for butane-2, 3-d...

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  3. The order of reactivity of the following alcohols towards conc. HCI is...

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  4. Consider the following reactions : The major product [B] of the r...

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  5. The reaction of HBr with gives

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  6. The most unlikely representation of resonance structure of p-nitrophen...

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  7. Which of the following will be most readily dehydrated in acidic condi...

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  8. Propan-1-ol and propan-2-ol can be best distinguished by :

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  9. Complete the following reaction

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  10. 2-Phenylpropene on acidic hydration gives:

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  11. When phenyl magnesium bromide reacts with tert butanol, which of the f...

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  12. (I) 1,2-Dihydroxy benzene (II) 1,3-Dihydroxy benzene (III) 1,4-Dih...

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  13. The major product U in the following reaction is

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  14. Compounds which are used for the denaturation of alcohols are :

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  15. Primary secondary and tertiary alcohols are distinguised by

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  16. Alcohols can be prepared by which of the following methods ?

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  17. Grignard's reagents give alkanes by reaction with :

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  18. Isobutyl alcohol cannot be obtained by the reaction between

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  19. Phenol is less acidic than

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  20. When phenol reactes with CHCl(3) and NaOH followed by acidification, ...

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