Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

i am not able to understand electrolysis of water
Asked by subramanya.chm | 18 May, 2023, 03:44: PM
answered-by-expert Expert Answer
Dear Student,
 
The chemical reaction of passing an electric current through water to decompose hydrogen and oxygen gases is known as the electrolysis of water.
 
The reaction is as follows:
2H2O ↔ 2H2↑ + O2
 
The number of hydrogen molecules produced is double that of oxygen molecules.Hydrogen is collected at the negative anode after water electrolysis, while oxygen is collected at the positive anode.
 

Electrolysis of acidified water

Electrolyte: Acidified water

Anode: Platinum

Cathode: Platinum

Ionisation of acidified water:                              

 H2O → H+ + OH

H2SO4  → H+ + SO42–

Ions present: H+, SO42–, OH

Reaction at the cathode:

 H+ + e → H

H + H → H2 (hydrogen molecule)

Reaction at the anode:

 OH − e→ OH × 4

OH– ion discharge in preference to SO42–

4OH → 2H2O + O2 (oxygen molecule)

Answered by | 20 May, 2023, 10:36: AM

Application Videos

CBSE 10 - Chemistry
Asked by ritik9897022 | 05 Feb, 2024, 09:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by parthmarch1 | 14 Dec, 2023, 08:27: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by amanazeez6 | 14 Dec, 2023, 01:10: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by reetritu34 | 14 Dec, 2023, 07:54: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by yadavparmit83 | 01 Dec, 2023, 06:16: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by p6917110 | 29 Oct, 2023, 09:06: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by namyabachhal | 16 Oct, 2023, 10:17: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by ramjilal01071988 | 14 Oct, 2023, 08:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by agarwalkrishnam98 | 01 Oct, 2023, 08:28: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×