Electrochemistry · Chemistry · MHT CET (Biology)
MCQ (Single Correct Answer)
Which of the following species acts as an oxidising agent during working of hydrogenoxygen fuel cell?
What is the amount of 'Al' deposited at cathode during electrolysis of aqueous $\mathrm{AlCl}_3$ by passing 1 faraday electricity?
If for the cell reaction,
$$ \mathrm{A}_{(\mathrm{s})}+\mathrm{B}_{(\mathrm{aq})}^{+} \longrightarrow \mathrm{A}_{(\mathrm{aq})}^{+}+\mathrm{B}_{(\mathrm{s})} $$
if $\mathrm{E}_{\text {cell }}^{\circ}=0.0592 \mathrm{~V}$. What is equilibrium constant of reaction at 298 K ?
The conductivity of 0.1 M KCl solution at $23^{\circ} \mathrm{C}$ is $0.012 \Omega^{-1} \mathrm{~cm}^{-1}$.
Resistance of a cell containing the solution at same temperature was found to be $50 \Omega$. Calculate the cell constant.
Identify the electrolyte from following so that $\wedge_0$ is not obtained from the graphical variation of $\wedge$ against $\sqrt{\mathrm{C}}$ ?
The molar conductivity of 0.02 M HCl is $408.4 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$ at $25^{\circ} \mathrm{C}$. Calculate it's conductivity.
Which of the following substances is NOT required in the construction of $\mathrm{H}_2-\mathrm{O}_2$ fuel cell?
What is the quantity of electricity required to liberate $112 \mathrm{~cm}^3$ of hydrogen gas at STP from acidified water?
Which of the following is selected as cathode for a galvanic cell set up with nickel anode?
The molar conductivity of $0.02 \mathrm{~mol} \mathrm{dm} \mathrm{dm}^{-3}$ solution of sodium hydroxide is $230.5 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$. What is it's conductivity?