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प्रश्न
The figure given below illustrates the apparatus used in the laboratory preparation of nitric acid:
(i) Name A (a liquid), B( a Solid) and C(a liquid).
(ii) write the balanced chemical equation to show how nitric acid undergoes decomposition.
(iii) Write the balanced chemical equation for the reaction in which copper is oxidized by concentrated nitric acid.
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उत्तर
(i) A = Sulphuric acid, B = potassium nitrate, C= nitric acid
(ii) \[\ce{4HNO3 -> 4NO2 + 2H2O + O2}\]
(iii) \[\ce{Cu + 4HNO3 ->[\Delta] Cu(NO3)2 + 2NO2 + 2H2O}\]
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संबंधित प्रश्न
What is the type of salt formed when the reactants are heated at a suitable temperature for the preparation of nitric acid?
Name a metal nitrate which on heating is changed into metal.
The action of heat on the blue crystalline solid X gives a reddish brown gas Y, a gas which re-lights a glowing splint and leaves a black residue. When gas Z, which has a rotten egg smell, is passed through a solution of X, a black ppt. is formed.
- Identify X, Y and Z.
- Write the equation for the action of heat on X.
- Write the equation between solution X and gas Z.
- Name the process used for the manufacture of nitric acid.
- What are the reactants required for it and what are their sources?
- In which ratio reactants are taken in this process?
- Name the catalyst used in the process.
- What is the oxidizing agent in this process?
- Write the equations involved.
What are the reactants required for Ostwald process and what are their sources?
How will you prepare Aqua regia from nitric acid?
Complete and balance the following equation :
Fe + HNO3(conc.) → _____________
Give reason for the following:
Commercial concentrated nitric acid is yellow in colour, but when it is dilute with water, it turns colourless.
Give one chemical test for nitric acid.
Write a balanced equation for the production of nitrogen dioxide using copper.
Explain the following:
Concentrated nitric acid appears yellow when it is left standing in a glass bottle.
