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प्रश्न
Cold, dilute nitric acid reacts with copper to give ______.
विकल्प
Sulphur dioxide
Nitrogen dioxide
Nitric oxide
Sulphuric acid
Hydrogen
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उत्तर
Cold, dilute nitric acid reacts with copper to give nitric oxide.
Explanation:
Cold, dilute nitric acid acts as an oxidizing agent and reacts with copper to form copper nitrate, water, and nitric oxide gas (NO).
\[\ce{3Cu + 8HNO3(dil{.} -> 3Cu(NO3)2 + 2NO + 4H2O)}\]
The nitric oxide formed is colourless, but on exposure to air it gets oxidised to reddish-brown nitrogen dioxide (NO2).
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संबंधित प्रश्न
Give a balanced chemical equation for Action of conc. Nitric acid on Sulphur
Name the gas that is produced in the given cases :
Sulphur is oxidized by concentrated nitric acid.
What is aqua fortis?
In the preparation of nitric acid from KNO3 concentrated sulphuric acid is used in place of hydrochloric acid. Why?
Name the Following:
Product obtained by the catalytic oxidation of ammonia.
Write the balanced equation for the following:
Action of concentrated nitric acid on copper.
Write balanced equation to show the reaction between the sulphur and hot concentrated nitric acid.
Fill in the blank using the appropriate words given below:
Hot, concentrated nitric add reacts with sulphur to form ______.
Write a balanced equation for following :
Action of cold and dilute nitric acid on copper
What happens when
Caustic soda solution is added to Cu(NO3)2 solution and product boiled.
