18th Oct Electrochemistry Quiz 8 – Punjab Meritorious School Preparation Portal

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In the electrolysis of water, one faraday of electrical energy would liberate

one mole of oxygen

one-gram atom of oxygen

8 g oxygen

22.4 lit. of oxygen

What is the time (in sec) required for depositing all the silver present in 125 mL of 1 M AgNO₃ solution by passing a (IF=96500 C) current of 241.25 A?

1000

100

The volume of oxygen gas liberated at NTP by passing a current of 9650 coulombs through acidified water is:

1.12 litre

2.24 litre

11.2 litre

22.4 litre

On passing current through two cells, connected in series containing solution of AgNO₃ and CuSO⁴, 0.18 g of Ag is deposited. The amount of the Cu deposited is:

0.529g

10.623 g

0.0529 g

1.2708 g

Total charge on 1 mole of a monovalent metal ion is equal to

To deposit one equivalent weight of silver at cathode, the charge required will be

Three faradays electricity was passed through an aqueous solution of iron (II) bromide. The weight of iron metal (at. wt. = 65) deposited at the cathode (in gm) is

112

168

How many atoms of calcium will be deposited from a solution of CaCl₂ by a current of 25 mA flowing for 60 seconds?

A silver cup is plated with silver by passing 965 coulombs of electricity. The amount of Ag deposited is:

107.89 g

9.89 g

1.0002 g

1.08 g

On passing C ampere of electricity through a electrolyte solution for second. m gram metal deposits on cathode. The equivalent weight E of the metal is

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