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प्रश्न
What do you observe when?
Hydrogen sulphide is bubbled through conc. HNO3?
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उत्तर
When hydrogen sulphide is bubbled through conc. HNO3 formation of sulphur, nitric oxide and water will occur.
\[\ce{3H2S + 2HNO3 -> 3S + 2NO + 4H2O}\]
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