JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 24 June 2022, Shift 1, Chemistry Q84

Question 84 of 90 in this shift, Chemistry question 24 of 30, Section B.

The cell potential for the following cell

\mathrm{Pt\,|H_2(g)|H^+(aq)\|\ Cu^{2+}(0.01\ M)|Cu(s)}

is 0.576 V at 298 K. The pH of the solution is ______. (Nearest integer) (Given :

E^\circ_{\mathrm{Cu^{2+}/Cu}}=0.34

V and

\frac{2.303RT}{F}=0.06

Official answer

NTA final key (2022 Session 1).

Chapter: Electrochemistry
Topic: Nernst Equation
Idea tested: Full Cell Nernst Equation

Same idea in other shifts

Asked 12× in all

4 Apr 2026, Shift 2 · Q73An electrochemical cell, consist of the following two redox couples, $\mathrm{M^{x+}(aq)/M(s)}$ $[E^\ominus_{red}=+0.15\ \mathrm{V}]$ and…HardNumerical value
5 Apr 2026, Shift 2 · Q57One half cell in a voltaic cell is constructed by dipping silver rod in $\mathrm{AgNO_3}$ solution of unknown concentration, other half…MediumSingle correct
7 Apr 2025, Shift 1 · Q711 Faraday electricity was passed through $\mathrm{Cu^{2+}}$ (1.5 M, 1 L) /Cu and 0.1 Faraday was passed through $\mathrm{Ag^+}$ (0.2 M, 1…HardNumerical valueHas a figure
8 Apr 2024, Shift 2 · Q63The emf of cell $\mathrm{Tl\,|\,Tl^+(0.001\,M)\,||\,Cu^{2+}(0.01\,M)\,|\,Cu}$ is 0.83 V at 298 K. It could be increased by :MediumSingle correct
25 Jul 2022, Shift 1 · Q84The cell potential for $\mathrm{Zn|Zn^{2+}(aq)\|Sn^{x+}|\,Sn}$ is $0.801$ V at 298 K. The reaction quotient for the above reaction is…MediumNumerical value
29 Jul 2022, Shift 2 · Q84For a cell, $\mathrm{Cu(s) \mid Cu^{2+}(0.001M) \mid\mid Ag^{+}(0.01M) \mid Ag(s)}$ the cell potential is found to be 0.43 V at 298 K. The…MediumNumerical value
26 Aug 2021, Shift 2 · Q56For the galvanic cell, $\mathrm{Zn(s) + Cu^{2+}}$ (0.02 M) $\rightarrow \mathrm{Zn^{2+}}$ (0.04 M) $+ \mathrm{Cu(s)}$ , $\mathrm{E_{cell}}$ …MediumNumerical value
26 Feb 2021, Shift 2 · Q57Emf of the following cell at 298 K in V is $x \times 10^{-2}$ . $\mathrm{Zn|Zn^{2+}}$ (0.1 M) $\|$ $\mathrm{Ag^+}$ (0.01 M) $|$ Ag The value of…MediumNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.