Q. 25.0( 1 Vote )
CaO is used as the drying agent while preparing ammonia in the laboratory. Can concentrated sulphuric acid be used as the drying agent in the place of CaO. Substantiate your answer.
Calcium oxide (CaO) is used as drying agent while preparing ammonia but concentrated sulphuric acid cannot be used as drying agent because sulphuric acid is an acid and ammonia is basic they will react to form a salt (Ammonium sulphate). So, sulphuric acid cannot be used as drying agent.
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Two suggestions were made when there was a leak of ammonia gas.
1. Spray water
2. Spray HCl
Which among this would you choose? Substantiate your answer.Kerala Board Chemistry Part II