[AFMC 1981]
A) Dil. $ H_2SO_4 $
B) Conc. $ H_2SO_4 $
C) Acetic acid
D) Water
Correct Answer: C
Organic acids dissolve lead in presence of oxygen $ Pb+2CH_3COOH+\frac{1}{2}O_2\to Pb{{(CH_3COO)}_2}+H_2O $
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