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प्रश्न
Give reason for the following:
Concentrated nitric acid is brown in colour.
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उत्तर
Concentrated nitric acid is brown in colour due to the presence of nitrogen dioxide formed by heating the acid.
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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.
What is passive iron?
How will you prepare the following from nitric acid?
Lead nitrate
Name the Following:
Salt used in the laboratory to prepare nitric acid
Can we use conc. HCl in place of Conc. H2SO4 ?
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
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 the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
Write a balanced equation for following :
Laboratory preparation nitric acid.
A dilute acid B does not normally give hydrogen when reacted with metals but does give a gas when it reacts with copper. Identify B. Write the equation with copper.
