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1. |
Name the drying agents:(a) used in drying hydrogen chloride gas.(b) phosphorus pentoxide and calcium oxide are good drying agent but they cannot be used to dry hydrogen chloride gas. Why? |
Answer» (a) Hydrogen chloride is dried by passing through conc. Sulphuric acid. (b) Phosphorous pentoxide and CaO cannot be used to dry HCl because they react with HCl. 2P2O5+ 3HCl → POCl3 + 3HPO3 CaO + 2HCl → CaCl2 + H2O |
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