Question

Identify the gas evolved when :
(i) Potassium sulphite is treated with dilute hydrochloric acid.
(ii) Concentrated hydrochloric acid is made to react with manganese dioxide.

August 22, 2024

Answer

(i) Sulphur dioxide gas

(ii) Chlorine gas

MnO₂ + 4HCl ${\overset{ \triangle }{\longrightarrow}}$ MnCl₂ + 2H₂O + Cl₂

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