Advertisements
Advertisements
प्रश्न
Name the substance used for drying ammonia gas? Why cannot substances such as conc.H2SO4, anhydrous calcium chloride and phosphorus pentoxide be used for drying ammonia gas?
Advertisements
उत्तर
The substance used for drying ammonia gas is quicklime( calcium
oxide) .Concentrated sulphuric acid, anhydrous calcium chloride and phosphorus pentoxide cannot be used for drying ammonia gas because ammonia being basic reacts wi th them, and the following reaction takes place
Conc.H2SO4 reacts with ammonia to form ammonium sulphate.
2 NH3 + H2SO4(conc..) → (NH4)2SO4
Phosphorus pentoxide reacts with ammonia to form ammonium phosphate.
6 Nh3 + P2O5 + 3H2O → 2(NH4)3PO4
Anhydrous calcium chloride combines with ammonia to form addi tion compound.
4 NH3 + CaCI2 → CaCI2. 4NH3
APPEARS IN
संबंधित प्रश्न
State one relevant observation for given reactions:
Burning of ammonia in air.
A gas ‘A’ reacts with another gas ‘B’ in the presence of a catalyst to give a colourless gas ‘C’. The gas ‘C’ when comes in contact with air produces a brown gas ‘D’. The solution of ‘A’ in water turns red litmus blue. Explain the observations.
Name the following
Gas obtained by treating chlorine in excess of ammonia.
Why is ammonium hydroxide used in qualitative analysis? Give two equations to justify your answer.
Give balanced chemical equations for of the following :
Reaction of ammonia with excess chlorine.
Give balanced reactions for the following conversion:
Ammonia to ammonium sulphate.
Give balanced equation to prove that ammonia Has the element nitrogen in it.
Choose the correct answer from the options given below :
Ammonia reacts with excess chlorine to form
Write the equation for:
The preparation of ammonia from ammonium chloride and calcium hydroxide.
