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Solution


Q.

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R:

Assertion A: Acetal/Ketal is stable in basic medium

Reason R: The high leaving tendency of alkoxide ion gives the stability to acetal/ketal in basic medium.

In the light of the above statements, choose the correct answer from the options given below:              [2023]
1 Both A and R are true but R is NOT the correct explanation of A  
2 A is false but R is true  
3 A is true but R is false  
4 Both A and R are true and R is the correct explanation of A  

Ans.

(3)

Acetals or ketals are stable in basic medium as alkoxide ion has poor leaving tendency.