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Chemistry
UTME / JAMB 1994
Electrochemistry & Electrolysis
Solution
What volume of Oxygen measured at s.t.p would be liberated on electrolysis by 9650 coulombs of electricity?
(Molar volume of gas = 22.4 dm\(^3\), 1F = 96,500 C/mol)
A
22.4 dm3
B
11.2 dm3
C
1.12 dm3
D
0.560 dm3
medium Difficulty
Study Explanation
Chemistry
WAEC / WASSCE 1989
Electrochemistry & Electrolysis
Solution
What quantity of copper will be deposited by the same quantity of electricity that deposited 9.0g of aluminum? (A = 27, Cu = 64)
A
64g
B
32g
C
7.1g
D
6.4g
E
3.2g
medium Difficulty
Study Explanation
Chemistry
UTME / JAMB 1981
Electrochemistry & Electrolysis
Solution
Oxidation is the process of?
A
gain of electrons
B
loss of electrons
C
gain of hydrogen
D
loss of oxygen
E
addition of an electropositive element to a substance
medium Difficulty
Study Explanation