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प्रश्न
SN1 reactions are accompanied by racemization in optically active alkyl halides.
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उत्तर
In SN1 reaction, formation of carbocation as an intermediate takes place. This carbocation has sp2-hybridised and planar structure. This planar carbocation is attacked by nucleophile from both the sides equally to form d and l isomers in equal proportion. Such products are called racemic mixture. Hence, SN1 reactions are accompanied by racemisation in optically active alkyl halides.
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संबंधित प्रश्न
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\[\ce{C2H5OH ->[SOCl2][Pyridine] A ->[KCN {(alc.)}] B ->[2H2O/H^+] C}\]
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Same molecular formula but different structures: A : : Non superimposable mirror images: B
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(i) (a) and (e) both are nucleophiles.
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\[\ce{CH3-CH2-Cl}\] or \[\ce{C6H5-CH2-Cl}\]
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Retention of configuration is observed in ______.
Inversion of configuration occurs in ______.
