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1
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

How many Faraday of electricity is required to deposit $$0.8 \mathrm{~g}$$ of calcium at cathode by the electrolysis of $$\mathrm{CaCl}_2$$ ?

(Molar mass of $$\mathrm{Ca}=40 \mathrm{~g} \mathrm{~mol}^{-1}$$)

A
4 F
B
0.04 F
C
2.5 F
D
2 F
2
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the conductivity of $$0.02 \mathrm{~M} \mathrm{~KCl}$$ solution if cell constant is $$1.29 \mathrm{~cm}^{-1}$$ with resistance 645 $$\Omega$$ ?

A
$$5.0 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}$$
B
$$2.0 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}$$
C
$$8.3 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}$$
D
$$2.5 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}$$
3
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Electrical conductance due to all the ions in $$1 \mathrm{~cm}^3$$ of given solution is called as

A
Molar conductivity
B
Resistivity
C
Conductivity
D
Electrical conductance
4
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following statements is true for Galvanic cell?

A
The anode is negative and cathode is positive.
B
Electrical energy is converted into chemical energy.
C
The anode is positive and cathode is negative.
D
Oxidation takes place at positive electrode and reduction takes place at negative electrode.
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