Chemistry
Name the gas that is produced.
(i) When sulphur is oxidized by concentrated nitric acid.
(ii) During action of cold and dilute ntric acid on copper.
Nitric Acid
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Answer
(i) Nitrogen dioxide
S + 6HNO3 ⟶ H2SO4 + 2H2O + 6NO2
(ii) Nitric oxide
3Cu + 8HNO3 (dil.) ⟶ 3Cu(NO3)2 + 2NO(g) + 4H2O
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Related Questions
Fill in the blanks using the appropriate words given in the bracket below:
[sulphur dioxide, nitrogen dioxide, nitric oxide, sulphuric acid]
(i) Cold, dilute nitric acid reacts with copper to give ……………
(ii) Hot, concentrated nitric acid reacts with sulphur to form ……………
Write the balanced chemical equation for –
(i) Action of cold and dilute nitric acid on copper.
(ii) Action of conc. nitric acid on sulphur.
(iii) Laboratory preparation of nitric acid.
State the type of salt formed when - The reactants are heated at a suitable temperature for the preparation of nitric acid in the laboratory.
Give a reason why - For the preparation of nitric acid in the laboratory, the complete apparatus is made up of glass.