What happen when gas obtained by heating oxalic acid in presence of concentrated sulphuric acid is passed through heated NaOH
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Explanation:
When oxalic acid is heated in the presence of concentrated sulphuric acid, oxalic acid dehydrates or in other words, it loses its water molecules. . When the gases CO and CO2 are passed through caustic soda which is NaOH, CO being soluble, passes through and does not get absorbed and react with NaOH
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