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प्रश्न
What would you observe in the following case:
Copper is heated with concentrated nitric acid in a hard glass test tube.
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उत्तर
Brown fumes of nitrogen dioxide are produced. Copper reacts with concentrated nitric acid to produce copper nitrate, water and nitrogen dioxide.
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संबंधित प्रश्न
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
Name the products formed when carbon and conc. nitric acid is heated.
Give the chemical name and formula of the substance formed as a brown ring in the test for nitrate radical.
Give reason for the following:
Nitric acid is used in purification of gold.
How will you prepare Aqua regia from nitric acid?
Fill in the blank with appropriate word/words.
Aqua regia is a mixture of _______ and________
Write balanced equation for the preparation of nitric acid from potassium nitrate.
Identify the gas evolved when sulphur is treated with concentrated nitric acid.
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
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.
