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Correct order of basic strengths of give...

Correct order of basic strengths of given amines is :

A

`underset(2^@)(Me_2NH) gt underset(1^@)( MeNH_2) gt underset(3^@)(Me_3N) gt NH_3` (Protic solvent)

B

`underset(2^@)(Et_2NH) gt underset(3^@)(Et_3H) gt underset(1^@)(EtNH_2) gt NH_3` (Protic solvent)

C

`Me_3N gt Me_2NHgt Me - NH_2 gt NH_3` (Gas phase)

D

All are correct

Text Solution

Verified by Experts

The correct Answer is:
D
(a) `underset(2^@)(Me_2NHgt) underset(1^@)(MeNH_2)gt underset(3^@)(Me_3N) gt ` if (R = Me or Butyl) (in polar protic solvent)
(b)`2^(@) gt 3^@ gt 1^@ gt NH_3` if (R = -Et)
(c) `3^@ gt 2^@ gt 1^@ gt NH_3` (Gas phase )
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