The increasing order of basicity of the following compounds is :

The increasing order of basicity of the following compounds is : 
  1. (iv) < (ii) < (i) <(iii)
  2. (i) < (ii) < (iii) < (iv)
  3. (ii) < (i) < (iii) < (iv)
  4. (ii) < (i) < (iv) < (iii)

Solution

Correct order should be :    ii  <  i  <  iv < iii

(i) N is sp3 hybridised, 1°Amine without delocalization.

(ii) N is sp2 hybridised.

(iii) Guanidine is a stronger base than amidine (resonance stabilised)

(iv) 2° Amine, N is sp3 hybridised.
 

Asked in: JEE Main 2018 (08 Apr)

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