Post-UTME Chemistry 2016 Objective — Question 10
Question 10 of 20 from the Post-UTME Screening (Post-UTME) Chemistry 2016 Objective paper, with the correct answer and a full explanation.
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In the preparation of carbon (II) oxide from ethanedioic acid, concentrated tetraoxosulphate (VI) acid acts as
- A. a reducing agent
- B. a catalyst
- C. a dehydrating agentCorrect
- D. an oxidizing agent
Explanation
Concentrated H2SO4 acts as a dehydrating agent in this preparation, removing water from ethanedioic acid to yield CO, CO2 and H2O.
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