Question

why hydrogen is collected over download displacement of water?​

Answer 1

Answer:

Hey mate here is your answer....

Hydrogen is collected by downward displacement of water as it is less denser than water. Hence it comes out at the surface of water . It is insoluble in water so it does not dissolve in water. In case of displacement with air, it is not possible even if hydrogen is lighter than air (14.5 times lighter than air).

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Its Shivika Tiwari....

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