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Monday, 17 August 2026
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Physics Past Questions and Answers

Topic: Faraday's laws of electrolysis

Jamb Physics Questions - Faraday's laws of electrolysis

Question 6:
A current of 0.5 A flowing 3h Deposits 2g of metal during electrolysis. The quantity of the same metal that would be deposited by the currents of 1.5A flowing in 1h is
  • A 2g
  • B 6g
  • C 10g
  • D 18g
View Answer & Explanation
Question 7:
The charge carriers in gasses are
  • A Ions only
  • B Electrons and ions
  • C Electrons and holes
  • D Electrons only
View Answer & Explanation
Question 8:
In Faradays law of electrolysis, a graph of the mass deposited against the quantity of electricity is plotted. The slope of the graph gives
  • A The energy released
  • B The electrochemical equivalent
  • C The current flowing
  • D The charge released
View Answer & Explanation
Question 9:
Calculate the mass of the copper deposited during electrolysis when a current of 4A passes through a copper salt for 2 hours. [Ece of Copper z=3.3x10-7kgC-1]
  • A 2.9x10<sup style='font-size: smaller;'>5</sup>kg
  • B 9.5x10<sup style='font-size: smaller;'>-7</sup>kg
  • C 9.5x10<sup style='font-size: smaller;'>-3</sup>kg
  • D 2.9x10<sup style='font-size: smaller;'>4</sup>kg
View Answer & Explanation
Question 10:
The electrochemical equivalent of silver is 0.0012g/C. If 36.0g of silver is to be deposited by electrolysis on a surface by passing a steady current for 5mins, the current must be?
  • A 6000A
  • B 100A
  • C 10A
  • D 1A
View Answer & Explanation