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प्रश्न
Racemisation occurs in ______.
विकल्प
SN1 reaction
SN2 reaction
Neither SN1 nor SN2 reaction
SN2 reaction as well as SN1 reaction
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उत्तर
Racemisation occurs in SN1 reaction.
Explanation:
A mixture containing two enantiomers in equal quantities will have zero optical rotation because the rotation caused by one isomer will be neutralised by the rotation caused by the other isomer. This type of mixture is known as a racemic mixture or racemic modification. Racemisation refers to the process of converting an enantiomer into a racemic mixture. Both retented and inverted products are generated during the SN1 reaction. Racemization happens as a result of the production of both d- and l- products.
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संबंधित प्रश्न
Which compound in the following pair will react faster in SN2 reaction with OH−?
CH3Br or CH3I
How will you bring about the following conversion?
Toluene to benzyl alcohol
SN1 reactions are accompanied by racemization in optically active alkyl halides.
Identify 'A' in the following reaction -
(a) 2- Bromo-2 methylbutane
(b) 1 -Bromo-2,2-dimethylpropane
(c) 1 - Bromo - 3 -methylbutane
(d) 1 - Bromo- 2 -methylpropane
Which compound in the following pair reacts faster in SN2 reaction with OH–?
- CH3Br or CH3
- CH3Cl, (CH3)3CCl
Which one is most reactive towards SN1 reaction?
The order of reactivity of the given haloalkanes towards nucleophile is:
Complete the following analogy:
Same molecular formula but different structures: A : : Non superimposable mirror images: B
Arrange the following compounds in increasing order of reactivity towards SN2 reaction.
2-Bromopentane, 1-Bromopentane, 2-Bromo-2-methylbutane
Identify the product in the following reaction: 
