NTA Abhyas JEE Main2020ChemistryGeneral Organic ChemistryPractice
The increasing order of the p K a values of the following compounds is
Options
- AC < B < A < D
- BB < C < A < D
- CD < A < C < B
- DB < C < D < A
Correct answer
B. B < C < A < D
Step-by-step solution
K a ∝ stability of phenoxide ion ∝ dispersal of –ve charge p K a ∝ 1 K a Stability of phenoxide ion = b > c > a > d K a = B > C > A > D Hence values of p K a in increasing order are B < C < A < D.