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Assertion : Although fluorine is more el...

Assertion : Although fluorine is more electronegative than chlorine, p-chlorobenzoic acid is a stronger acid than p-fluorobenzoic acid.
Reason : Due to mathcing size of 2p-orbitals of F and C, F has stronger +R effect than Cl.

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(A) Although fluorine is more electronegative than chlorine, yet p-fluorobenzoic acid is a weaker acid than p-chlorobenzoic acid. (R) Due to matching sizes of 2p orbitals of F and carbon, F has a stronger +R effect than Cl.

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