MHT CET 2026 17th April Morning Shift | Electrochemistry Question 22 | Chemistry

If the emf of cell, $\text{Cu}_{(s)} \mid \text{Cu}^{2+}_{(1M)} \| \text{Ag}^{+}_{(1M)} \mid \text{Ag}$ is 0.463 V at $25\ ^\circ\text{C}$ and standard potential of Cu electrode is 0.337 V. Find the standard potential of Ag electrode

$0.128\ \text{V}$

$-0.128\ \text{V}$

$0.8\ \text{V}$

$-0.8\ \text{V}$

MHT CET 2026 17th April Morning Shift

MCQ (Single Correct Answer)

-0

Which of the following hot aqueous solutions is used to dip carbon rods of $\text{H}_2 - \text{O}_2$ fuel cell ?

$\text{KCl}$

$\text{KOH}$

$\text{H}_2\text{SO}_4$

$\text{NH}_4\text{Cl}$

MHT CET 2026 17th April Morning Shift

MCQ (Single Correct Answer)

-0

The conductivity of 0.02 M of KCl solution at 298 K is 0.0123 $\text{ohm}^{-1}\ \text{cm}^{-1}$. If the resistance of the cell containing this solution is 120 ohms, what is the value of the cell constant ?

$1.050\ \text{cm}^{-1}$

$1.025\ \text{cm}^{-1}$

$1.376\ \text{cm}^{-1}$

$1.476\ \text{cm}^{-1}$

MHT CET 2025 5th May Evening Shift

MCQ (Single Correct Answer)

-0

What is percent dissociation of $\mathrm{NH}_4 \mathrm{OH}$ if molar conductance at zero concentration for $\mathrm{NH}_4 \mathrm{Cl}$, NaCl and NaOH are 130, 109 and $213 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$ respectively and molar conductivity of $0.01 \quad \mathrm{M} \quad \mathrm{NH}_4 \mathrm{OH}$ is $9.0 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$ ?

$\frac{100}{40}$

$\frac{100}{35}$

$\frac{100}{32}$

$\frac{100}{26}$

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