Embibe Experts Solutions for Chapter: Electrochemistry, Exercise 1: Exercise 1

At equimolar concentrations of ${\mathrm{Fe}}^{2+}$ and ${\mathrm{Fe}}^{3+}$, what must $\left[{\mathrm{Ag}}^{+}\right]$ be so that the voltage of the galvanic cell from the $\left({\mathrm{Ag}}^{+}\mid \mathrm{Ag}\right)$ and $\left({\mathrm{Fe}}^{3+}\mid {\mathrm{Fe}}^{2+}\right)$ electrodes equals zero?

${\mathrm{Fe}}^{2+}+{\mathrm{Ag}}^{+}\rightleftharpoons {\mathrm{Fe}}^{3+}+\mathrm{Ag}$,

${\mathrm{E}}_{{\mathrm{Ag}}^{+}\mid \mathrm{Ag}}=0.7991; {\mathrm{E}}_{{\mathrm{Fe}}^{3+}\mid {\mathrm{Fe}}^{2+}}=0.771$

Which of the following metals will precipitate copper from copper sulphate solution?

Among the following metals, the strongest reducing agent is:

The electrolysis of a concentrated aqueous solution of $\mathrm{NaCl}$ results in:

How many faradays are required to reduce one mole of ${\mathrm{MnO}}_4^{-}$ to ${\mathrm{Mn}}^{2+}$ :

A current of $9.65$ $\mathrm{ampere}$is passed through the aqueous solution $\mathrm{NaCl}$ using suitable electrodes for $1000 \mathrm{s}$. The amount of $\mathrm{NaOH}$ formed during electrolysis is:

One $\mathrm{g}$ equivalent of $\mathrm{Na}$ metal is formed from electrolysis of fused $\mathrm{NaCl}$. Number of mole of $\mathrm{Al}$ formed from the fused ${\mathrm{Na}}_3{\mathrm{AIF}}_6$ with the same current passed is:

Which has maximum conductivity: