Question

What are the elements which are produced on eletrolysis of acidulated water ​

Answer 1

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In electrolysis of water the elements are settled. Hydrogen settles at cathode and Oxygen settles at anode.

Answer 2

Answer:

In the electrolysis of acidulated water, oxygen gas is evolved at the anode. OH– being negatively charged, moves towards the anode (positively charged electrode).

• Ions present in the solution are

SO42−, OH− and H+

• +ve charge moves towards cathode whereas -ve charge moves towards the anode. Hence, during electrolysis of acidulated water, hydrogen is collected at the cathode and oxygen is collected at the anode.

Reaction at cathode: H+ + e− → HH + H → H2

The reaction at anode OH − ion

discharge in preference to

SO42−OH− → OH + e−

4OH → 2H2O + O2