JEE Main202228 Jul 2022Morning ShiftChemistryGeneral Organic ChemistryActual

Among the following marked proton of which compound shows lowest pK a value?

Correct answer

Step-by-step solution

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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