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प्रश्न
When a sulphite reacts with an acid, the gas evolved is ______.
विकल्प
oxygen
hydrogen
sulphur dioxide
carbon dioxide
MCQ
रिक्त स्थान भरें
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उत्तर
When a sulphite reacts with an acid, the gas evolved is sulphur dioxide.
Explanation:
Treatment of a sulphite salt with a dilute acid yields salt, water, and sulphur dioxide (SO2) gas.
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