CSEC Chemistry · May/June 2015 · Paper 1 · Question Q56
A gas, Z, has physical and chemical properties similar to ammonia. The BEST method for collecting a pure, dry sample of Z would be to pass it through
- (A)water and collect by downward delivery
- (B)calcium oxide and collect by upward delivery
- (C)calcium chloride and collect by downward delivery
- (D)concentrated sulfuric acid and collect by upward delivery
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