Properties of hydrogen chloride
- It is colorless gas with pungent smell.
- It can be easily liquefied.
- It freezes to white crystalline solid.
- It is highly soluble in water.
- It readily reacts with ammonia forming ammonium chloride:
- It forms aqua regia that is a mixture of HNO3 with HCl in ratio of 1:3 that helps in dissolving noble metals.
- It can decompose salts of weaker acids: