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Friday, 9 October

JEE Main Chemistry · Electrochemistry

Concentration Cells

Concentration Cells (Electrochemistry) was asked 2 times in 2 JEE Main shifts, 2020–2021, out of the 42 shifts Lumi analysed. 1 of the 2 had a numerical answer.

Times asked
2
in 2 shifts
Years
2020–2021
Usual format
Numerical value
Application
Pattern
Gone quiet
repeats across shifts

How it is asked

  • Emf of concentration cell
  • Condition for spontaneity of concentration cell

Difficulty

Easy 0Medium 2Hard 0

Where it sits

Chapter: Electrochemistry. Topic: Nernst Equation, 23 questions over 9 ideas.

Other repeat ideas in this topic

Every time it came

All 2 questions

Newest first, each with its options and official answer.

  1. 3 Aug 2021, Shift 2 · Q56The potential of a cell containing two hydrogen electrodes, one in contact with 10−810^{-8} M H+\mathrm{H^+} concentration and the other in…MediumNumerical value
  2. 6 Sep 2020, Shift 2 · Q45For the given cell ; Cu(s)∣Cu2+(C1 M)∣∣Cu2+(C2 M)∣Cu(s)\mathrm{Cu(s)|Cu^{2+}(C_1\ M)||Cu^{2+}(C_2\ M)|Cu(s)} change in Gibbs energy (ΔG\Delta G) is negative, if :MediumSingle correct