BITSAT2017ChemistryAminesActual

Maximum pK b value is of

Options

ACH 3 CH 2 2 NH
BCH 3 2 NH

Correct answer

Step-by-step solution

Maximum pK b (least basic) is (d) since, lone pair on N-atom is used to delocalise π -electrons on two benzene rings. Least basic has maximum value of pK b . Since, in (d), lone pair of electrons over N -atom are delocalised to two benzene rings, thus is least basic.

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