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Post-UTME Chemistry 2017 Objective — Question 3

Question 3 of 20 from the Post-UTME Screening (Post-UTME) Chemistry 2017 Objective paper, with the correct answer and a full explanation.

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During the electrolysis of dilute sodium chloride solution, the product at the anode is

  • A. sodium
  • B. hydrogen
  • C. oxygenCorrect
  • D. chlorine

Explanation

In dilute NaCl solution, hydroxide ions are preferentially discharged at the anode, producing oxygen gas.

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