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1
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the number of moles of electrons passed when current of 5 ampere is passed through a solution of FeCl$$_3$$ for 20 minutes?

A
$$6.25\times10^{-2}$$
B
$$1.56\times10^{-2}$$
C
$$3.12\times10^{-2}$$
D
$$4.25\times10^{-2}$$
2
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following statements is true for conductivity?

A
It is inversely proportional to resistivity.
B
It is inversely proportional to molar conductivity.
C
It is directly proportional to resistivity.
D
It is directly proportional to resistance.
3
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The molar conductivity of $$0.4 \mathrm{~M} \mathrm{~KCl}$$ solution is $$2.5 \times 10^5 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$. What is the resistivity of solution?

A
$$2.1 \times 10^2$$
B
$$2.5 \times 10^2$$
C
$$1 \times 10^{-2}$$
D
$$2.8 \times 10^{-2}$$
4
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the number of electrons passed through an electrolyte solution when 1 ampere current is passed for 16.1 minutes?

A
$$5.022 \times 10^{24}$$
B
$$3.011 \times 10^{22}$$
C
$$6.022 \times 10^{21}$$
D
$$2.022 \times 10^{23}$$
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