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  • Which of the following is false regarding high purity hydrogen preparation ? Option: 1 The liberated gas is passed over heated platinum gauze so

Which of the following is false regarding high purity hydrogen preparation ? 

Option: 1

The liberated gas is passed over heated platinum gauze so as to remove oxygen 


Option: 2

Hydrogen gas is liberated at cathode


Option: 3

Nickel or platinum electrodes can be used for the process 


Option: 4

NaOH is preferred over Ba(OH)_2 as an electrolyte for electrolysis 


Answers (1)

best_answer

In the electrolysis of water, usually Ni or Pt electrodes are used

During the electrolysis, H_2 is liberated at cathode and O_2 is liberated at anode.

 Ba(OH)_2  is preferred over NaOH as an electrolyte because if any CO_2  is absorbed from the atmosphere, BaCO_3 formed settles down on account of its less solubility.

Therefore, option(4) is correct.

Posted by

Suraj Bhandari

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