CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Which of the following statements are correct regarding the process of electrolysis of water?


Correct Answer
A
H+ ions move towards the cathode.
Correct Answer
B
OH ions move towards the anode.
Your Answer
C
Oxygen gas evolves at the cathode.
Correct Answer
D
Hydrogen gas evolves at the cathode.

Solution

The correct options are
A H+ ions move towards the cathode.
B OH ions move towards the anode.
D Hydrogen gas evolves at the cathode.

During its electrolysis, the water molecule (H2O) undergoes decomposition to form H+ and OH ions.

The H+ ions move towards the cathode (negatively charged electrode) and thus hydrogen gas evolves there. The reaction occuring at cathode is:

2H2O (l)+2eH2(g)+2OH(aq)

The OH ions move towards the anode (positively charged electrode) and thus oxygen gas evolves there. The reaction occuring at anode is:

2H2O (l)O2 (g)+4H+(aq)+4e

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image