1. Tardigrade
  2. Question
  3. Chemistry
  4. Assertion S N 1 reaction is basically a solvolysis reaction. Reason Polar protic solvents help the substrate to ionise and by the way get involved in S N 1 reaction.

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Q. Assertion $S _{ N } 1$ reaction is basically a solvolysis reaction.
Reason Polar protic solvents help the substrate to ionise and by the way get involved in $S _{ N } 1$ reaction.

AIIMSAIIMS 2010

Solution:

In $S_{N} 1$ reaction, first the substrate gets ionised and then, the nucleophile attacks at the cation. To ionise a substrate, presence of polar protic solvent is necessary, thus $S _{ N } 1$ reactions are basically solvolysis reactions.
Hence, Reason is the correct explanation for Assertion.