Advertisements
Advertisements
प्रश्न
Give reason for the following:
Concentrated nitric acid is brown in colour.
Advertisements
उत्तर
Concentrated nitric acid is brown in colour due to the presence of nitrogen dioxide formed by heating the acid.
APPEARS IN
संबंधित प्रश्न
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
Ammonia is used in the Ostwald process.
Name the catalyst used in the process.
How will you prepare the following from nitric acid?
Lead nitrate
Why is freshly prepared ferrous sulphate solution used in the ring test?
Give two chemical tests for nitric acid.
Write balanced equation and name the product formed when :
Cupric oxide reacts with nitric acid.
What do you observe when?
Concentrated nitric acid is dropped on a hot surface?
Fill in the blank with appropriate word/words.
Aqua regia is a mixture of _______ and________
Name (formula is not acceptable) the gas produced in the following reaction:
On warming ammonium sulphate with sodium hydroxide solution.
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.
