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WAEC Chemistry 2021 Objective — Question 28

Question 28 of 50 from the West African Examinations Council (WAEC) Chemistry 2021 Objective paper, with the correct answer and a full explanation.

28. How many coulombs of electricity would liberate 1.08g of Ag from a solution of silver salt? [Ag=108.0; 1F=96500C]

A. 96500C
B. 9650C
C. 965CCorrect
D. 9.65C

Explanation

1 mole of Ag (108g) requires 96500C. For 1.08g: (96500/108)×1.08 = 965C.

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