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प्रश्न
State one appropriate observation of the following:
Which gas is evolved when potassium sulphite with dilute hydrochloric acid.
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उत्तर
Ethene gas decolourises the purple colour of KMnO4, whereas ethane does not decolourise KMnO4 solution.
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संबंधित प्रश्न
Explain, why (or give reasons for)
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- State why such an arrangement is necessary? Give two reasons for the same.
- Write the chemical equation for the laboratory preparation of HCl gas when the reaction is:
- Below 200°C
- Above 200°C
