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Electrochemistry — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryElectrochemistry1 Mark
MCQ
Select incorrect statement:
  • A
    If salt-bridge is removed, potential falls to zero.
  • B
    Liquid-junction potential developed across the boundary of the two solutions of different concentration cells are used.
  • C
    Calomel electrode contains calcium chloride solution in contact with Pt electrode.
  • D
    Quinhydrone electrode is reversible to H+.
✓

Answer

  1. Calomel electrode contains calcium chloride solution in contact with Pt electrode.

Explanation:

Calomel eletrode contains calomel paste (Hg2​Cl2​) in contact with Hg(l) and (aq) KCl solution. Pt electrode is dipped to make contact.

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