Arrange in the increasing order of pka. 2-bromo-3-methyl-butanoic acid (A) 3-bromo-2-methyl butanoic acid (B) 2-ethyl-3-methyl

Question

Arrange in the increasing order of pka.
2-bromo-3-methyl-butanoic acid (A)
3-bromo-2-methyl butanoic acid (B)
2-ethyl-3-methyl butanoic acid (C)
2-chloro-3-methyl butanoic acid (D)
A<B<D<C
D<B<A<C
D<A<B<C
C<B<A<D

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