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Electrochemical cells - Jamb Chemistry Past Questions and Answers

Jamb Chemistry Past Questions

Questions and Answers on Electrochemical cells

Question 1:

JAMB 2019

The cost of discharging 6.0g of a divalent metal, X from its salt is What is the cost of discharging 9.0g of a trivalent metal, Y from its salt under the same condition?
[X = 63, Y = 27, 1F = 96,500C]

A. N12.00
B. N27.00
C. N63.00
D. N95.00

View Answer & Explanation

Question 2:

JAMB 1985

A correct electrochemical series can be obtained from K, Na, Ca, Al, Mg, Zn, Fe, Pb, H, Cu, Hg, Ag, Au by interchanging?

A. Al and Mg
B. Zn and Fe
C. Zn and Pb
D. Pb and H
E. Au and Hg

View Answer & Explanation

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