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प्रश्न
Give balanced chemical equations for the following:
Sulphur dioxide gas is passed through NaOH solution.
रासायनिक समीकरण/संरचनाएँ
अति संक्षिप्त उत्तर
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उत्तर
Sulphur dioxide reacts with limited NaOH (1 : 1 molar ratio) to form sodium bisulphite.
\[\ce{SO2 + NaOH -> Na2SO3 + H2O}\]
Sulphur dioxide reacts with excess NaOH (2 : 1 molar ratio) to form sodium sulphite.
\[\ce{SO2 + 2NaOH -> Na2SO3 + H2O}\]
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