1.

The correct acidity order of the following is

Answer»

IIIgtIVgtIIgtI
IVgtIIIgtIgtII
IIIgtIIgtIgtIV
IIgtIIIgtI

Solution :
Carboxylic acids are more ACIDIC than phenols (exception as pictric acid which is a PHENOL) Electron withdrawing groups exerts acid -strengthening effect while Electron supplying group EXERT acid -WEAKENING effect. The -I effect of Cl of DOMINATING over its +R effect.


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