Question

why nh3 cannot be dried by using conc h2so4,p2o5,cacl2​

Answer 1

Answer:

Explanation:

Ammonia cannot be dried by passing over conc. sulphuric acid because ammonia gas reacts chemically with conc. sulphuric acid to form ammonium sulphate.

2NH3 + H2SO4 (conc.) --> (NH4)2SO4.

With anhydrous calcium chloride or P2O5 it cannot be dried it is because ammonia gas forms an addition campound with anhydrous calcium chloride.

8NH3+ CaCl2 --> CaCl2.8NH3 (Additional compound )

Hence in both the cases NH3 reacts with the compund this assertion and reason are correct and reason is the correct explanation of assertion .