Chemistry Practice Test: Electrolysis (Questions with Answers and Explanations)

Hello and Welcome to Chemistry Practice Test: Electrolysis

  1. You are to attempt 5 random objectives questions ONLY.
  2. Supply Your Full Name and Location in the text box below and begin immediately.
  3. You can attempt as many times as possible.
1. 


The function of zinc electrode in a galvanic cell is that it _____ (JAMB 2011)

A. uses up electrons
B. undergoes reduction
C. serves as the positive electrode
D. produces electrons.

2. 


A concentrated solution containing H+, Cu2+, OH- and Cl- was electrolysed using platinum electrodes. The ion that will be discharged at the cathode is _____ (JAMB 2005)

A. Cu2+     B. Cl-     C. H+      D. OH-

3. 


Calculate be amount in moles of silver deposited when 9650 C of electricity is passed through a solution of silver salt. (1F = 96500 C mol-1) (JAMB 2017)

A. 0.03      B. 10.80      C. 10.00      D. 0.10

4. 


The solution that will conduct the highest amount of electricity is ______ (JAMB 2006)

A. 2.0 moldm-3 of ethanoic acid
B. 0.5 moldm-3 ethanoic acid
C. 2.0 moldm-3 of hydrochloric acid
D. 0.5 moldm-3 of hydrochloric acid.

5. 


The acid used in electrolysis of water is dilute ______ (JAMB 2009)

A. HNO3   B. CH3COOH   C. H2SO4   D. HCI

 

 

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