Assertion, A : CH2CICOOH is 100 times as strong as CH3COOH while CHC12COOH is still stronger. The CC13COOH is 10000 times stronger than ~H3COOH. Reasoning, R : Electron-withdrawing halogens strengthen the acids.
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Both Assertion and Reason are correct and the reason is the correct explanation of Assertion.
More the electronegitivity of the halogens , more will be the acidity.So Acidity increases if number of halide ions increases.
Order of Acidity: CCL3COOH > CHCl2COOH >CH2ClCOOH > CH3COOH
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