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Question: Answered & Verified by Expert
Among the following marked proton of which compound shows lowest pKa value?
ChemistryGeneral Organic ChemistryJEE MainJEE Main 2022 (28 Jul Shift 1)
Options:
  • A

  • B

  • C

  • D

Solution:
1641 Upvotes Verified Answer
The correct answer is:

The smaller the value of pKa, the stronger the acid. The acidic nature of the compound depends on the stability of conjugate base.

The stability of conjugate base formed by above compound is more stable than other three compounds given.

So it has least pKa value.

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