Electrolysis of water is a decomposition...

Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is

`1 : 1`

`2 : 1`

`4 : 1`

`1 : 2`

Text Solution

Verified by Experts

The correct Answer is:

The water decomposes during electrolysis to form hydrogen and oxygen gases in the ratio `2 : 1` by volume.
`underset("Water")(2H_(2)O(l))overset("Electric current")tounderset("2 : 1")underset("Hydrogen Oxygen")(2H_(2)(g)+O_(2)(g))`

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Number of moles of oxygen liberated by electrolysis of 90g of water

9 moles

4-5 moles

2.5moles

5 moles.

What is the ratio of volumes of H_(2) and O_(2) liberated during electrolysis of acidified water ?

`1:2`

`2:1`

`1:3`

`3:1`

What is the ratio of volumes of H_(2) and O_(2) liberated during electrolysis of acidified water?

`1:2`

`2:1`

`1:8`

`8:1`