Advertisements
Advertisements
Question
Given reasons: SN1 reactions are accompanied by racemization in optically active alkyl halides.
Advertisements
Solution
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.
RELATED QUESTIONS
Write the mechanism of the following reaction:
\[\ce{{n}BuBr + KCN ->[EtOH-H2O] {n}BuCN}\]
What happens when methyl chloride is treated with KCN?
SN1 reactions are accompanied by racemization in optically active alkyl halides.
Tertiary alkyl halides are practically inert to substitution by SN2 mechanism because of ____________.
An important chemical method to resolve a racemic mixture makes use of the formation of ______.
Which of the following compounds is optically active?
2-Bromopentane is heated with potassium ethoxide in ethanol. The major product obtained is ____________.
SN1 reaction of alkyl halides lead to ___________.
Inversion of configuration occurs in ______.
Assertion (A): 
undergoes SN2 reactions faster than 
.
Reason (R): Iodine is a better leaving group because of its large size.
In the light of the above statements, choose the correct answer from the options given below:
