Advertisements
Advertisements
प्रश्न
What happens when
NH3 solution is added to CuSO4 solution drop by drop and then in excess.
Advertisements
उत्तर
When NH3 solution is added to CuSO4 solution drop by drop, ammonia ions completely react with copper sulphate and precipitates of copper hydroxide are formed.
CuSO4(aq) + 2NH3(aq) + 2H2O(I) → Cu(OH)2(s) + (NH4)2SO4(aq)
But when we add excess of ammonia, the precipitate dissolves and a soluble complex is formed.
CuSO4(aq) + 4NH3(aq) → [Cu(NH3)4]SO4(aq)
APPEARS IN
संबंधित प्रश्न
Name the Following:
Two coloured nitrates.
Write balanced equation and name the product formed when :
Concentrated nitric acid is heated.
What do you observe when?
Hydrogen sulphide is bubbled through conc. HNO3?
Complete and balance the following equation :
HNO3 + FeSO4 + H2SO4 → ______________
What do you see when concentrated nitric acid is added to copper?
Name (formula is not acceptable) the gas produced in the following reaction:
By the action of concentrated nitric acid on copper.
When nitric acid is prepared by the action of concentrated sulphuric acid on potassium nitrate. what is the special feature of the apparatus used?
Copy and complete the following table relating to important industrial processes output refers to the product of the process not the intermediate steps.
| Name of process | Inputs | Catalyst | Equation for catalysed reaction | Output |
| Haber process | Hydrogen + | |||
|
Ammonia + |
Nitric acid |
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
The figure given below illustrates the apparatus used in the laboratory preparation of nitric acid.
- Name A (a liquid), B (a solid), and C (a liquid). (Do not give the formulae.)
- Write an equation to show how nitric acid undergoes decomposition.
- Write the equation for the reaction in which copper is oxidised by concentrated nitric acid.
