Verified Solution • 2025–26 Session
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QJEEM23Ch1376: JEE Main 2023 Chemistry - Class 12 JEEM23Ch1376 Solution: Given below are two statements : one is labelled as Assertion A …
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 :
Multiple Choice Options
- A A is false but R is true.
- B Both A and R are true but R is NOT the correct explanation of A
- C Both A and R are true and R is the correct explanation of A
- D A is true but R is false.
Step-by-Step Verified Solution
For Assertion: Acetal and ketals are basically ethers hence they must be stable in basic medium but should break down in acidic medium. Hence assertion is correct.
For reason: Alkoxide ion (RO–) is not considered a good leaving group hence reason must be false.
For reason: Alkoxide ion (RO–) is not considered a good leaving group hence reason must be false.