1
KCET 2024
MCQ (Single Correct Answer)
+1
-0

A current of 3 A is passed through a molten calcium salt for 1 hr 47 min 13 s . The mass of calcium deposited is (Molar mass of $\mathrm{Ca}=40 \mathrm{~g} \mathrm{~mol}^{-1}$ )

A
6.0 g
B
2.0 g
C
8.0 g
D
4.0 g
2
KCET 2024
MCQ (Single Correct Answer)
+1
-0

The value of ' $A$ ' in the equation $\lambda_{\mathrm{m}}=\lambda_{\mathrm{m}}^{\circ}-A \sqrt{C}$ is same for the pair

A
NaCl and $\mathrm{CaCl}_2$
B
$\mathrm{CaCl}_2$ and $\mathrm{MgSO}_4$
C
NaCl and KBr
D
$\mathrm{MgCl}_2$ and NaCl
3
KCET 2023
MCQ (Single Correct Answer)
+1
-0

The resistance of $$0.1 \mathrm{~M}$$ weak acid $$\mathrm{H} A$$ in a conductivity cell is $$2 \times 10^3 \mathrm{~Ohm}$$. The cell constant of the cell is $$0.78 ~\mathrm{C} \mathrm{~m}^{-1}$$ and $$\lambda_{\mathrm{m}}^{\circ}$$ of acid $$\mathrm{H} A$$ is $$390 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$. The $$\mathrm{pH}$$ of the solution is

A
3.3
B
4.2
C
5
D
3
4
KCET 2023
MCQ (Single Correct Answer)
+1
-0

During the electrolysis of brine, by using inert electrodes,

A
$$\mathrm{O}_2$$ liberates at anode
B
$$\mathrm{H}_2$$ liberates at anode
C
Na deposits on cathode
D
$$\mathrm{Cl}_2$$ liberates at anode
KCET Subjects
EXAM MAP