Easy MCQ +4 / -1 PYQ · JEE Mains 2022

High purity (> 99.95%) dihydrogen is obtained by :

  1. A reaction of zinc with aqueous alkali.
  2. B electrolysis of acidified water using platinum electrodes.
  3. C electrolysis of warm aqueous barium hydroxide solution between nickel electrodes. Correct answer
  4. D reaction of zinc with dilute acid.

Solution

High purity (>99.95 %) $\mathrm{H}_{2}$ is obtained by electrolysing warm aqueous $\mathrm{Ba}(\mathrm{OH})_{2}$ solution between nickel electrodes.

About this question

Subject: Chemistry · Chapter: p-Block Elements · Topic: Group 13: Boron Family

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