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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
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 two chemical equations for the following:
Nitric acid acting as the oxidizing agent.
How can 68% nitric acid be concentrated to 98% nitric acid?
What do you observe when?
Scrap zinc is heated with conc. HNO3?
Write balanced equation for the preparation of nitric acid from potassium nitrate.
Give reason for the following:
In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitatre should not be heated very strongly, above 200°C
Name the product, catalyst and approximate temperature maintained in Ostwald's process. How is the temperature maintained in the Ostwald's process?
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.
What is the special feature of the apparatus that is used in the laboratory preparation of nitric acid?
