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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?
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
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संबंधित प्रश्न
Write a balanced chemical equation for the following:
Reaction of Ammonia with heated copper oxide.
Write balanced chemical equations for the following:
An equation to illustrate the reducing nature of ammonia.
Ammonia solution in water gives a blue precipitate when it combines with a solution of copper salt. The blue precipitate further dissolves in excess of an ammonia solution to give the azure blue solution. Explain with the equation.
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) __________ |
Name the following
Products obtained by treating with excess chlorine.
Give balanced equation of :
Action of heat an a mixture of copper an nitric acid
Give balanced reactions for the following conversion:
Ammonia to nitrogen using oxygen.
Give balanced reactions for the following conversion:
Ammonia to ammonium sulphate.
Differentiate between:
Reaction of excess ammonia with chlorine and NH3 with excess chlorine
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
