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Friday, 9 October

NEET UG 2017 · Chemistry · Question 63

NEET 2017 Chemistry, question 63

Question 63 of the NEET 2017 paper (code A) is a Chemistry question from Electrochemistry. Its idea, Full Cell Potential Calculation, was asked 3 times, in 2017 and 2022, across NEET 2017–2026. The CBSE official answer key gives option 3.

Updated 2026-10-08

Q63 · Chemistry

In 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 concentration of ZnSO4\mathrm{ZnSO_4} is changed to 1.0 M and that of CuSO4\mathrm{CuSO_4} changed to 0.01 M, the emf changes to E2E_2. From the followings, which one is the relationship between E1E_1 and E2E_2 ? (Given, RTF\frac{RT}{F} = 0.059)

  1. 1E1=E2E_1 = E_2
  2. 2E1<E2E_1 < E_2
  3. 3E1>E2E_1 > E_2Official answer
  4. 4E2=0≠E1E_2 = 0 \neq E_1

Official answer: option 3 · CBSE official answer key

Same idea

Full Cell Potential Calculation, in other papers

NEET asked this idea 3 times, in 2017 and 2022. The other 2 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

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.

Electrochemistry: questions per paper

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