Question

explain the silent feature of SN1 mechanism ​

Answer 1

Answer:

SN1 reactions are nucleophilic substitutions , involving a nucleophile replacing a leaving group ( just like SN2 ) . However : SN1 reactions are unimolecular : the rate of this reaction depends only on the concentration of one reactant .

Answer 2

UNIMOLECULAR SUBSTITUTION REACTION(SN1) DEPENDS UPON THE CONCENTRATION OF SUBSTRATE. IT FORMS A RACEMIC MIXTURE.

A CARBOCATION INTERMEDIATE IS FORMED IN SN1.

Explanation:

• The SN1 reaction is a unimolecular substitution reaction.
• The rate law of SN1 reaction depends upon the concentration of substrate and not on the nucleophile.
• The leaving group leaves from the substrate. In this reaction a solvent is used as it stabilizes the intermediate. The intermediate form is a carbocation.
• The stability order of carbocation is as follows: 3°>2°>1°>methyl carbocation. In this the carbocation may undergo rearrangement to form a more stable carbocation.
• A racemic mixture is formed in the reaction; retention and inversion products.
• SN1 occurs in two steps, the formation of carbocation is rate determining step.