The increasing order of pK b values of the following compounds is :

The increasing order of pKb values of the following compounds is :

  

  1. II<IV<III<I
  2. I<II<IV<III
  3. II<I<III<IV
  4. I<II<III<IV

Solution

   PKb∝1 Basic strength Kb
Kb∝+1,+M effect e- density)
Kb∝1-L-M effect 

Kb=1>2>4>3

PKb=1<2<4<3

  

 

Asked in: JEE Main 2020 (06 Sep Shift 1)

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