The presence of ammonia gas in a desiccator can exclusively be removed by
- phosphorus (V) oxide
- fused calcium chloride
- calcium oxide
-
concentrated tetraoxosulphate (VI) acid
The correct answer is: D
Explanation
Ammonia gas can be removed from a dessicator by adding a conc. H2SO4 so as to neutralize it since ammonia gas is basic.
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