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
Write a balanced chemical equation for the following:
Reaction of Ammonia with heated copper oxide.
State the conditions required for the given reaction to take place:
Catalytic oxidation of ammonia to nitric oxide.
Name the gas obtained when ammonia burns in an atmosphere of oxygen without any catalyst.
Copy and complete the following table which refers to the industrial method for the preparation of ammonia and sulphuric acid:
| Name of the compoun | Name of the process | Catalytic equation (with the catalyst) |
| Ammonia | (i)__________ | (ii) __________ |
| Sulhuric acid | (iii) ___________ | (iv) __________ |
Choose the correct answer from the options given below :
Nessler's reagent is an alkaline solution of
Write equation for the following:
Burning of ammonia in oxygen.
Write balanced chemical equations for a reaction in which ammonia is oxidised by the following:
(i) A metal oxide
(ii) A gas which is not oxygen
Give a balanced chemical equation for the following:
Reaction of ammonia with excess of chlorine.
The product formed when ammonia reacts with oxygen is ______.
Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide. What will she observe?
