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AP EAMCET202317 May 2023Evening ShiftChemistryElectrochemistryActual

The electrolyte used in mercury cell is

Options

  1. AMoist paste of NH ₄ Cl and ZnCl ₂
  2. B38 % solution of H ₂ SO ₄
  3. CPaste of KOH and ZnO
  4. DPaste of MgCl ₂ and HgO

Correct answer

C. Paste of KOH and ZnO

Step-by-step solution

Mercury cell uses a paste of KOH and ZnO . Anode = Zn - Hg amalgam Cathode = HgO + C paste.

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