For the following acidsI CH33CCH2CO2H II CH33N⊕CH2CO2H III CH3COOHpKa value will be in order
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a
I > II > III
b
l < lI < lII
c
I > III > II
d
II > III > I
answer is C.
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Detailed Solution
EWG increases acidic strength −I, −mEDG decreases acidic strength pKa ∝ 1KaKa ∝ Stability of carboxylate ion.Stability of ion is II > III > I⇒ Ka II > III > IpKa II < III < I