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JEE Main202224 Jun 2022Evening ShiftChemistryElectrochemistryActual

In the industrial production of which of the following, molecular hydrogen is obtained as a bye product.

Options

  1. ANa 2 CO 3
  2. BNaOH
  3. CNa metal
  4. DNaHCO 3

Correct answer

B. NaOH

Step-by-step solution

NaOH is produced in Nelson cell using Brine solution. Reaction taking place will be Cathode: 2 H 2 O + 2 e - → H 2 + 2 OH - Anode: 2 Cl - → Cl 2 + 2 e - In solution Na + + OH - → NaOH So, H 2 gas is released at cathode during preparation of NaOH .

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