1
MHT CET 2020 16th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

A solution of $$\mathrm{CuSO}_4$$ is electrolysed using a current of 1.5 amperes for 10 minutes. What mass of Cu is deposited at cathode? [Atomic mass of $$\mathrm{Cu}=63.7$$]

A
0.637 g
B
0.297 g
C
0.150 g
D
0.395 g
2
MHT CET 2020 16th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

If resistivity of 0.8 M KCl solution is $$2.5 \times 10^{-3} \Omega \mathrm{~cm}$$. Calculate molar conductivity solution?

A
$$2 \times 10^5 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$
B
$$5 \times 10^5 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$
C
$$4 \times 10^5 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$
D
$$3 \times 10^5 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$
3
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

How many electrons are involved in the reaction, when $$0.40 \mathrm{~F}$$ of electricity is passed through an electrolytic solution?

A
$$6.642 \times 10^{25}$$
B
$$1.505 \times 10^{24}$$
C
$$6.022 \times 10^{23}$$
D
$$2.4088 \times 10^{23}$$
4
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

What will be the concentration of $$\mathrm{NaCl}$$ solution, if the molar conductivity and conductivity of $$\mathrm{NaCl}$$ solution is $$124.3 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$ and $$1.243 \times 10^{-4} \Omega^{-1} \mathrm{~cm}^2$$ respectively?

A
$$0.1 \mathrm{~mol} \mathrm{~L}^{-1}$$
B
$$0.001 \mathrm{~mol} \mathrm{~L}^{-1}$$
C
$$0.01 \mathrm{~mol} \mathrm{~L}^{-1}$$
D
$$0.02 \mathrm{~mol} \mathrm{~L}^{-1}$$
MHT CET Subjects
EXAM MAP