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प्रश्न
Give an example of double displacement reaction, where a gas is evolved.
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उत्तर
\[\ce{Na2S + 2HCI -> 2NaCI + H2S ↑}\]
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संबंधित प्रश्न
Explain, giving one example for each of the following chemical changes:
Displacement
Decomposition brought about by heat is known as thermal decomposition. What is the difference between thermal dissociation and thermal decomposition?
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Multiple choice:
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Give a balanced equation for a direct combination reaction involving:
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