20
MCQ (Multiple Correct Answer)
$\mathrm{E}_{\text {cell }}^{\circ}=1.1 \mathrm{~V}$ or Daniel cell. Which of the following expressions are correct description of state of equilibrium in this cell?
A
$1.1=K_C$
B
$\frac{2.303 R T}{2 F} \log K_C=1.1$
C
$\log K_C=\frac{2.2}{0.059}$
D
$\log K_C=1.1$
21
MCQ (Multiple Correct Answer)
Conductivity of an electrolytic solution depends on
A
nature of electrolyte
B
concentration of electrolyte
C
power of AC source
D
distance between the electrodes
22
MCQ (Multiple Correct Answer)
$\Lambda_{\mathrm{m}}^{\circ} \mathrm{H}_2 \mathrm{O}$ is equal to. ............... .
A
$\Lambda_{m(\mathrm{HCl})}^{\circ}+\Lambda_{m(\mathrm{NaOH})}^{\circ}-\Lambda_{m(\mathrm{NaCl})}^{\circ}$
B
$\Lambda_{m\left(\mathrm{HNO}_3\right)}^{\circ}+\Lambda_{m\left(\mathrm{NaNO}_3\right)}^{\circ}-\Lambda_{m(\mathrm{NaOH})}^{\circ}$
C
$\Lambda_{m\left(\mathrm{HNO}_3\right)}^{\circ}+\Lambda_{m(\mathrm{NaOH})}^{\circ}-\Lambda_{m\left(\mathrm{NaNO}_3\right)}^{\circ}$
D
$\Lambda_{m\left(\mathrm{NH}_4 \mathrm{OH}\right)}^{\circ}+\Lambda_{m(\mathrm{HCl})}^{\circ}-\Lambda_{m\left(\mathrm{NH}_4 \mathrm{Cl}\right)}^{\circ}$
23
MCQ (Multiple Correct Answer)
What will happen during the electrolysis of aqueous solution of $\mathrm{CuSO}_4$ by using platinum electrodes?
A
Copper will deposit at cathode
B
Copper will deposit at anode
C
Oxygen will be released at anode
D
Copper will dissolve at anode
24
MCQ (Multiple Correct Answer)
What will happen during the electrolysis of aqueous solution of $\mathrm{CuSO}_4$ in the presence of Cu electrodes?
A
Copper will deposit at cathode
B
Copper will dissolve at anode
C
Oxygen will be released at anode
D
Copper will deposit at anode