Q.

Statement 1: Ortho substituted benzoic acids are stronger than benzoic acid.

Statement 2: Ortho substituent tends to prevent coplanarity of COOH with ring. Thus resonance is diminished which increases acidic strength (ortho effect)

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a

Statement 1 is incorrect statement 2 is correct

b

Statement 1 is correct statement 2 is incorrect

c

Both statements 1 and 2 are correct

d

Both statements 1 and 2 are incorrect

answer is A.

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Detailed Solution

The Ortho substituted benzoic acids are considerably stronger acids than benzoic acid , with out any respect to the substituent whether it is electron releasing or electron with drawing . this effect is known as Ortho effect.

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Statement 1: Ortho substituted benzoic acids are stronger than benzoic acid.Statement 2: Ortho substituent tends to prevent coplanarity of −COOH with ring. Thus resonance is diminished which increases acidic strength (ortho effect)