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Among methonic acid and ethanoic acid wh...

Among methonic acid and ethanoic acid which is more acidic and why?

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Methanoic acid is more acidic `HCOOH > C_2H_5COO`H Electron releasing substituents like alkyl groups (`C_2H_5`) tend to increase the electron density on oxygen atom of O.H bond by existing +1 effect, hence release of proton becomes difficult by making O-H bond stroger as compared to menthanoic acid. In methanoic acid. In methanoic acid release of proton became easier. Hence methanoic acid is stronger acid.

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