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Post-UTME Chemistry 2011 Objective — Question 2

Question 2 of 10 from the Post-UTME Screening (Post-UTME) Chemistry 2011 Objective paper, with the correct answer and a full explanation.

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Which of the following acts both as a reducing and an oxidizing agent?

  • A. H2
  • B. SO2Correct
  • C. H2S

Explanation

SO2 can act as either a reducing or oxidizing agent depending on the reaction partner.

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