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Question
What happens when conc. sulphuric acid is added to Sulphite? Explain using a suitable reaction.
Explain
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Solution
It decomposes metal sulphites with brisk effervescence to release sulphur dioxide (SO2) gas.
\[\ce{Na2SO3 + H2SO4 (conc.) -> Na2SO4 + H2O + SO2 ^}\]
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Chapter 11: Study of Compounds: Sulphuric Acid - EXERCISE [Page 223]
