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Friday, 9 October

NEET UG 2022 · Chemistry · Question 87

NEET 2022 Chemistry, question 87

Question 87 of the NEET 2022 paper (code R1) is a Chemistry question from Electrochemistry. Its idea, Full Cell Potential Calculation, was asked 3 times, in 2017 and 2022, across NEET 2017–2026. NTA dropped it from the official answer key.

Updated 2026-10-08

Q87 · Chemistry

Find the emf of the cell in which the following reaction takes place at 298 K

Ni(s)+2Ag+(0.001 M)→Ni2+(0.001 M)+2Ag(s)\mathrm{Ni(s) + 2Ag^+ (0.001\ M) \to Ni^{2+} (0.001\ M) + 2Ag(s)}

(Given that Ecell∘E^\circ_{cell} = 10.5 V, 2.303 RTF\frac{2.303\,RT}{F} = 0.059 at 298 K)

  1. 11.05 V
  2. 21.0385 V
  3. 31.385 V
  4. 40.9615 V

No official answer: dropped by NTA.

Same idea

Full Cell Potential Calculation, in other papers

NEET asked this idea 3 times, in 2017 and 2022. The other 3 questions below.

  • 2022 Q53Given below are half cell reactions : MnO4−+8H++5e−→Mn2++4H2O\mathrm{MnO_4^- + 8H^+ + 5e^- \to Mn^{2+} + 4H_2O}, EMn2+/MnO4−∘=−1.510E^\circ_{\mathrm{Mn^{2+}/MnO_4^-}} = -1.510…Numerical · Easy
  • 2022 Q80At 298 K, the standard electrode potentials of Cu2+/Cu\mathrm{Cu^{2+}/Cu}, Zn2+/Zn\mathrm{Zn^{2+}/Zn}, Fe2+/Fe\mathrm{Fe^{2+}/Fe} and Ag+/Ag\mathrm{Ag^+/Ag}…One-line MCQ · Easy
  • 2017 Q63In the electrochemical cell : Zn|ZnSO4\mathrm{ZnSO_4} (0.01 M)||CuSO4\mathrm{CuSO_4} (1.0 M)|Cu, the emf of this Daniel cell is E1E_1. When the…One-line MCQ · Medium

Full Cell Potential Calculation: every question and how it was framed

The chapter

Electrochemistry in ten years of NEET

17 questions from 2017–2026, asked in 10 of 10 papers, about 1.6 a paper. Nernst Equation alone had 9.

Chapter analysisStudy this chapterPractise this chapter

Electrochemistry: questions per paper

0241’171’182’192’202’212’222’232’241’252’26