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Which of the following is normally used for drying ammonia gas?

Chemistry
WAEC 1990
Which of the following is normally used for drying ammonia gas?
  • A. Concentrated tetraoxonitrate (Vl) acid
  • B. Calcium oxide
  • C. anhydrous calcium chloride
  • D. phosphorus (V) oxide
  • E. anhydrous copper (ll) tetraoxosulphate (VI)
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Correct Answer: Option B
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