Question

Is it possible to produce hydrogen by decomposition of water by means of heat, electricity or light?

Answer 1

Yes.
Hydrogen can be produced by electrolysis of water.
In electrolysis, electricity is passed through water and it decomposes to form hydrogen and water. Hydrogen has positive ions so it gets collected over negative cathode and oxygen has negative ions so it gets collected over positive anode. By placing a jar over cathode, hydrogen can be collected.
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Answer 2

Answer:

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Explanation:

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