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प्रश्न
Give reason for the following:
Nitric acid is used in purification of gold.
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उत्तर
Nitric acid is used in the purification of gold because impurities of other metals are dissolved in it.
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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.
Explain the following:
An all-glass apparatus is used in the laboratory preparation of nitric acid.
Give two chemical equations for the following:
Reactions of nitric acid with non-metals.
Write a balanced equation and name the products formed when zinc reacts with dilute nitric acid.
Brown ring disappear if the test tube is disturbed.
What do you observe when?
Conc. HNO3 drops on the skin of a person?
Complete and balance the following equation:
Cu + HNO3 → NO2 + ________+ _________
Name (formula is not acceptable) the gas produced in the following reaction:
By the action of concentrated nitric acid on copper.
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.
Explain why nitric acid is kept in a reagent bottle for a long time.
