Chemistry, asked by mdkmattt7181, 8 months ago

Sulphurous acid forms two types of salts on reaction with an alkali.
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Answers

Answered by Thoroddinson

11

Sulphurous acid is a dibasic acid and has two replaceable hydrogen ions. Hence, it can form two salts

bisulphite (hydrogen sulphite) and sulphite.

H2SO3 + NaOH → NaHSO3 (sodium hydrogen sulphite) + H2O

NaHSO3 + NaOH → Na2SO3 (sodium sulphite) + H2O

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