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  • On electrolysis of dilute sulphuric acid using Platinum (Pt) electrode,  the product obtained at the anode will be :Option: 1 <img alt="SO_

On electrolysis of dilute sulphuric acid using Platinum (Pt) electrode,  the product obtained at the anode will be :

Option: 1

SO_{2}\; gas


Option: 2

Hydrogen gas

 


Option: 3

Oxygen gas


Option: 4

H_{2}S\; gas


Answers (1)

best_answer

On electrolysis of of dilute sulphuric acid,

At anode - 4OH^-\rightarrow O_2+2H_2O+4e^-

At Cathode - 4H^++4e^-\rightarrow 2H_2

On electrolysis of dilute sulphuric acid using the Platinum (Pt) electrode, the product obtained at the anode will be oxygen gas while at the cathode it is hydrogen gas. 

In the case of Concentrated sulfuric acid, an anode H_2S_2O_8 is formed.

Therefore, the correct option is (3).

Posted by

Irshad Anwar

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