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2. Electrochemistry — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry2. Electrochemistry1 Mark
MCQ
$Ag/AgCl(s) / KCl$ electrode is
  • A
    Reversible $w.r.t$ cation
  • ✓
    Reversible $w.r.t\, Cl^-$ ion
  • C
    Reversible $w.r.t\, K^+$ ion
  • D
    Reversible $w.r.t\, Ag^+$ ion
✓

Answer

Correct option: B.
Reversible $w.r.t\, Cl^-$ ion
b
Electrode reaction

$AgCl_{(s)} + e^-\to  Ag_{(s)} + Cl^-$

$\therefore $ electrode is reversible $w.r.t.$ chloride ion

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