Chapter 7: Problem 8
Fill in the blanks. The extent to which an electrolyte can dissociate into ions is called ___.
Chapter 7: Problem 8
Fill in the blanks. The extent to which an electrolyte can dissociate into ions is called ___.
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Get started for free\(100 \mathrm{ml}\) of \(0.05 \mathrm{M}\) aqueous \(\mathrm{CuSO}_{4}\) solution is subjected to electrolysis. Calculate the quantity of electricity required for the deposition of entire copper at the cathode. (a) \(0.005 \mathrm{~F}\) (b) \(0.01 \mathrm{~F}\) (c) \(0.1 \mathrm{~F}\) (d) \(0.05 \mathrm{~F}\)
Identify the set of metals which require same amount of charge for the deposition of one mole of metals: (a) \(\mathrm{Na}, \mathrm{Ag}, \mathrm{Al}\) (b) \(\mathrm{Zn}, \mathrm{Cu}, \mathrm{Ag}\) (c) \(\mathrm{Al}, \mathrm{Cu}, \mathrm{Zn}\) (d) \(\mathrm{Mg}, \mathrm{Zn}, \mathrm{Cd}\)
The process used in purifying metals by electrolysis is called (a) electroplating (b) electrometallurgy (c) electrorefining (d) electrodeposition
Assertion (A): Passage of 48,250 coulombs of electricity through cupric sulphate and ferrous sulphate solutions result in the deposition \(0.5\) moles each of iron and copper at the respective cathodes. Reason (R): Number of equivalents of a metal deposited at cathode is equal to the number of faradays of electricity passed through the electrolyte. (a) Both "A" and "R" are true and "R" is the correct explanation of "A". (b) Both "A" and "R" are true and "R" is not the correct explanation of "A". (c) "A" is correct and "R" is wrong. (d) "A" is wrong and "R" is correct.
Equimolar solutions of zinc sulphate and ferric sulphate are subjected to electrolysis. What is the ratio of Faradays of electricity required for deposition of one mole each of zinc and iron? (a) \(1: 2\) (b) \(2: 3\) (c) \(1: 3\) (d) \(3: 2\)
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