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प्रश्न
Translate the following statement into chemical equation and then balance it.
Hydrogen sulphide gas burns in the air to give water and sulphur dioxide.
उत्तर
\[\ce{H2S_{(g)} + O2_{(g)} -> H2O_{(l)} + SO2_{(g)}}\]
Balanced equation:
\[\ce{2H2S_{(g)} + 3O2_{(g)} -> 2H2O_{(l)} + 2SO2_{(g)}}\]
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| Reactants | Products | Types of chemical reaction | ||
| 1. | MgH2 | → | Mg + H2 | Endothermic |
| 2. | 2H2S + SO2 | → | 3S + 2H2O | Oxidation |
| 3. | CaO + H2O | → | Ca(OH)2 + heat | Exothermic |
| Redox | ||||
