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1
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

How many faraday of electricity is required to produce 10 g of calcium metal (molar mass = 40 g mol$$^{-1}$$) from calcium ions?

A
1.5 F
B
2.0 F
C
0.50 F
D
1.0 F
2
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The molar conductivity of 0.1 M BaCl$$_2$$ solution is 106 $$\Omega^{-1}$$ cm$$^2$$ mol$$^{-1}$$ at 25$$^\circ$$C. What is it's conductivity?

A
1.06 $$\times$$ 10$$^{-2}$$ $$\Omega^{-1}$$ cm$$^{-1}$$
B
5.3 $$\times$$ 10$$^{-3}$$ $$\Omega^{-1}$$ cm$$^{-1}$$
C
3.66 $$\times$$ 10$$^{-3}$$ $$\Omega^{-1}$$ cm$$^{-1}$$
D
2.6 $$\times$$ 10$$^{-2}$$ $$\Omega^{-1}$$ cm$$^{-1}$$
3
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following is NOT correct regarding electrolysis?

A
It helps in refining of metals.
B
Conversion of electrical energy into chemical energy takes place.
C
It is useful in electroplating.
D
Metal is deposited at anode.
4
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A conductivity cell shows resistance of 600 ohm. If conductivity of 0.01 M KCl is 0.0015 $$\Omega^{-1}$$ cm$$^{-1}$$, what is cell constant?

A
0.60 cm$$^{-1}$$
B
0.45 cm$$^{-1}$$
C
0.90 cm$$^{-1}$$
D
0.75 cm$$^{-1}$$
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