Hydrogen And Its Compounds Question 68

Question: Pure hydrogen is obtained by carrying electrolysis of

Options:

A) Water containing $ H_2SO_4 $

B) Water containing NaOH

C) $ Ba{{(OH)}_2} $ solution

D) KOH solution

Show Answer

Answer:

Correct Answer: C

Solution:

Pure hydrogen is obtained by the electrolysis of $ Ba{{(OH)}_2} $ solution in a U-tube using nickel electrode. The gas is liberated at the cathode and is passed over heated platinum gauze to remove oxygen if present as impurity.