AktiraAktira JEE
Subscribe
ChemistryJEE Main 23 Jan 2026, Shift 1·Q5·MCQ·Moderate

Electrochemistry · Nernst equation cell potential

In the given electrochemical cell, Ag(s)∣|AgCl(s)∣|FeClX2\ce{FeCl2}(aq), FeClX3\ce{FeCl3}(aq)∣|Pt(s) at 298 K, the cell potential (EcellE_\mathrm{cell}) will increase when :
  • (A)Concentration of FeX2+\ce{Fe^{2+}} is increased.
  • (B)Concentration of FeX3+\ce{Fe^{3+}} is decreased
  • (C)Concentration of FeX2+\ce{Fe^{2+}} is decreased
  • (D)Concentration of FeX3+\ce{Fe^{3+}} is increased
  • (E)Concentration of ClX−\ce{Cl-} is increased
Choose the correct answer from the options given below :
  1. (1)A and B only
  2. (2)A and E only
  3. (3)B only
  4. (4)C, D and E only
We corrected a printing error in the original paper

Source labelled the fifth statement “(D)” (two statements (D), none (E), while the options refer to E).

Video solution coming soon

We're animating every PYQ step by step. Subscribe to get them first.

Subscribe

See the full 23 Jan 2026, Shift 1 paper