Electrochemistry PYQs - Last 10 Years
JEE Advanced / Chemistry / Physical Chemistry / 17 recent questions
ChemistryPhysical Chemistry2017-2026
Practice 17 JEE Advanced Chemistry questions from Electrochemistry. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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2017-2026
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INTEGER58.8%
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8 in last 5 years17 in last 10 years
Last 10 Years Electrochemistry Questions
Showing 17 of 17 filtered questions.
1Electrochemistry
At 300 K , the molar conductivities of the aqueous solutions of three salts at two different concentrations are given below :
Salt
Concentration (M)
Molar conductivity (S cm2 mol−1)
NaNO3
0.01
111
...
Salt
Concentration (M)
Molar conductivity (S cm2 mol−1)
NaNO3
0.01
111
...
MCQ+3 / -12026
2Electrochemistry
An electrochemical cell is fueled by the combustion of butane at 1 bar and 298 K . Its cell potential is $\frac{\boldsymbol{X}}{F} \times 10^3$ volts, where $F$ is the Faraday constant. The value of $\boldsymbol{X}$ is _____________.
Use: S...
Use: S...
INTEGER+4 / -02025
3Electrochemistry
In an electrochemical cell, dichromate ions in aqueous acidic medium are reduced to Cr3+. The current (in amperes) that flows through the cell for 48.25 minutes to produce 1 mole of Cr3+ is ______.Use: 1 Faraday = 96500 C mol−1
INTEGER+4 / -02025
4Electrochemistry
An aqueous solution of hydrazine $\left(\mathrm{N}_2 \mathrm{H}_4\right)$ is electrochemically oxidized by $\mathrm{O}_2$, thereby releasing chemical energy in the form of electrical energy. One of the products generated from the electroche...
MCQM+4 / -22024
5Electrochemistry
In a conductometric titration, small volume of titrant of higher concentration is added stepwise to a larger volume of titrate of much lower concentration, and the conductance is measured after each addition.
The limiting ionic conductivit...
The limiting ionic conductivit...
MCQ+3 / -12024
6Electrochemistry
Plotting $1 / \Lambda_{\mathrm{m}}$ against $\mathrm{c} \Lambda_{\mathrm{m}}$ for aqueous solutions of a monobasic weak acid $(\mathrm{HX})$ resulted in a straight line with $\mathrm{y}$-axis intercept of $\mathrm{P}$ and slope of $\mathrm{...
MCQ+3 / -12023
7Electrochemistry
Consider the strong electrolytes $Z_{m} X_{n}, U_{m} Y_{p}$ and $V_{m} X_{n}$. Limiting molar conductivity ( $\Lambda^{0}$ ) of $\mathrm{U}_{\mathrm{m}} \mathrm{Y}_{\mathrm{p}}$ and $\mathrm{V}_{\mathrm{m}} \mathrm{X}_{\mathrm{n}}$ are 250 ...
INTEGER+3 / -12022
8Electrochemistry
The reduction potential $\left(E^{0}\right.$, in $\left.\mathrm{V}\right)$ of $\mathrm{MnO}_{4}^{-}(\mathrm{aq}) / \mathrm{Mn}(\mathrm{s})$ is __________.
[Given: $E_{\left(\mathrm{MnO}_{4}^{-}(\mathrm{aq}) / \mathrm{MnO}_{2}(\mathrm{~s})\...
[Given: $E_{\left(\mathrm{MnO}_{4}^{-}(\mathrm{aq}) / \mathrm{MnO}_{2}(\mathrm{~s})\...
INTEGER+3 / -02022
9Electrochemistry
At 298 K, the limiting molar conductivity of a weak monobasic acid is 4 \(\times\) 102 S cm2 mol\(-\)1. At 298 K, for an aqueous solution of the acid the degree of dissociation is \(\alpha\) and the molar conductivity is y \(\times\) 102 S ...
INTEGER+2 / -02021
10Electrochemistry
At 298 K, the limiting molar conductivity of a weak monobasic acid is 4 \(\times\) 102 S cm2 mol\(-\)1. At 298 K, for an aqueous solution of the acid the degree of dissociation is \(\alpha\) and the molar conductivity is y \(\times\) 102 S ...
INTEGER+2 / -02021
11Electrochemistry
Some standard electrode potentials at 298 K are given below :Pb2+ /Pb = \(-\)0.13 VNi2+ /Ni = \(-\) 0.24 VCd2+ /Cd = \(-\) 0.40 VFe2+ /Fe = \(-\) 0.44 VTo a solution containing 0.001 M of X2+ and 0.1 M of Y2+, the metal rods X and Y are in...
MCQM+4 / -22021
12Electrochemistry
Consider a 70% efficient hydrogen-oxygen fuel cell working under standard conditions at 1 bar and 298 K. Its cell reaction is \({H_2}(g) + {1 \over 2}{O_2}(g)\buildrel {} \over
\longrightarrow {H_2}O(l)\)The work derived from the cell on t...
INTEGER+4 / -02020
13Electrochemistry
Molar conductivity (\(\Lambda\)m) of aqueous solution of sodium stearate, which behaves as a strong electrolyte, is recorded at varying concentrations (C) of sodium stearate. Which one of the following plots provides the correct representa...
MCQ+3 / -12019
14Electrochemistry
Consider an electrochemical cell :
\(A\left( s \right)\left| {{A^{n + }}\left( {aq,2M} \right)} \right|{B^{2n + }}\left( {aq,1M} \right)\left| {B\left( s \right).} \right.\)
The value of \(\Delta {H^ \circ }\) for the cell reaction is twi...
\(A\left( s \right)\left| {{A^{n + }}\left( {aq,2M} \right)} \right|{B^{2n + }}\left( {aq,1M} \right)\left| {B\left( s \right).} \right.\)
The value of \(\Delta {H^ \circ }\) for the cell reaction is twi...
INTEGER+3 / -02018
15Electrochemistry
For the electrochemical cell,
\(\left. {Mg\left( s \right)} \right|M{g^{2 + }}\left( {aq,1\,M} \right)\left\| {C{u^{2 + }}} \right.\left( {aq,1M} \right)\left| {Cu\left( s \right)} \right.\)
the standard \(emf\) of the cell is \(2.70\) $$V...
\(\left. {Mg\left( s \right)} \right|M{g^{2 + }}\left( {aq,1\,M} \right)\left\| {C{u^{2 + }}} \right.\left( {aq,1M} \right)\left| {Cu\left( s \right)} \right.\)
the standard \(emf\) of the cell is \(2.70\) $$V...
INTEGER+3 / -02018
16Electrochemistry
For the following cell,
\(Zn\left( s \right)\left| {ZnS{O_4}\left( {aq} \right)} \right|\left| {CuS{O_4}\left( {aq} \right)} \right|Cu\left( s \right)\)
when the concentration of \(Z{n^{2 + }}\) is \(10\) times the concentration of $$C{u^{2...
\(Zn\left( s \right)\left| {ZnS{O_4}\left( {aq} \right)} \right|\left| {CuS{O_4}\left( {aq} \right)} \right|Cu\left( s \right)\)
when the concentration of \(Z{n^{2 + }}\) is \(10\) times the concentration of $$C{u^{2...
MCQ+3 / -0.752017
17Electrochemistry
The conductance of a \(0.0015\) \(M\) aqueous solution of a weak monobasic acid was determined by using a conductivity cell consisting of platinized \(Pt\) electrodes. The distance between the electrodes is \(120\) \(cm\) with an area of cr...
INTEGER+3 / -02017