Post Utme Uniosun 2020 Chemistry Question 2

Practice objective / multiple choice question 2 from the 2020 Post Utme Uniosun Chemistry examination.

Post Utme Uniosun 2020 Chemistry Objective / Multiple Choice
Question 2 POST_UTME_UNIOSUN • 2020 • CHEMISTRY • objective
Post Utme Uniosun 2020 Chemistry Question 2 diagram

The electrolysis of water produces hydrogen gas at the cathode and oxygen gas at the anode. What is the half-reaction at the cathode?

Answer Options

Correct Answer A. 2H+ + 2e- → H2
B. 2H2O → O2 + 4H+ + 4e-
C. 2H2O + 2e- → H2 + 2OH-
D. 2H+ + 2e- → H2O
Correct Answer
A
Correct Option:
2H+ + 2e- → H2

About This Question

This is Post Utme Uniosun 2020 Chemistry Question 2. It is one of the objective questions from the 2020 Post Utme Uniosun Chemistry examination.

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