Lead pipes are corroded quickly by

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(C) Lead is resistant to corrosion by dilute $H_2SO_4$ and $HCl$ due to the formation of an insoluble protective layer of $PbSO_4$ or $PbCl_2$ on its

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Acetic acid

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(C) Lead is resistant to corrosion by dilute $H_2SO_4$ and $HCl$ due to the formation of an insoluble protective layer of $PbSO_4$ or $PbCl_2$ on its surface.However,lead is readily corroded by organic acids like acetic acid in the presence of oxygen (air).The reaction is: $Pb + 2CH_3COOH + \frac{1}{2}O_2 	o Pb(CH_3COO)_2 + H_2O$.

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