Post-UTME Chemistry 2018 Objective — Question 11
Question 11 of 21 from the Post-UTME Screening (Post-UTME) Chemistry 2018 Objective paper, with the correct answer and a full explanation.
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In the preparation of ammonia, which of the following is used as a drying agent?
- A. Calcium chloride
- B. Concentrated tetraoxosulphate(VI) acid
- C. Calcium oxideCorrect
- D. Sodium hydroxide
Explanation
Calcium oxide (quicklime) is used to dry ammonia gas, since ammonia (a base) would react with acidic drying agents like conc. H2SO4 or form a complex with CaCl2.
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