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प्रश्न
What do you observe when?
Conc. HNO3 drops on the skin of a person?
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उत्तर
When conc. HNO3 drops on the skin of a person it reacts with the protein of the skin and forms a yellow compound called xanthoproteic acid, hence skin becomes yellow, Excess of conc. HNO3 causes blisters on the skin and is highly corrosive.
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संबंधित प्रश्न
Ammonia is used in the Ostwald process.
Give the sources of reactants used in this process.
How will you prepare the following from nitric acid?
Lead nitrate
How will you prepare the following from nitric acid?
Magnesium nitrate
Give reason for the following:
In laboratory preparation of nitric acid all the apparatus including cork should be made up of glass.
Write balanced equation and name the product formed when :
Cupric oxide reacts with nitric acid.
How will you prepare Aqua regia from nitric acid?
Give two chemical tests to distinguish between dilute nitric acid and hydrochloric acid.
Write the equation for the laboratory preparation of nitric acid from potassium nitrate and concentrated sulphuric acid.
Explain, why only all glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
