Options: A . &nbsp I, II only B . &nbsp II, III only C . &nbsp III, IV only D . &nbsp II, III. IV only

Question -

Options:

A . I, II only

B . II, III only

C . III, IV only

D . II, III. IV only

Answer: Option B
:
B

Basic nature decreases by steric effect & phenyl groups as it has - R effect

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