Advertisements
Advertisements
Question
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
Solution
The glass apparatus is purposely used because the nitric acid produced reacts with practically every material, including cork and rubber. Glass is the lone exception. Nitric acid in its pure form is unstable when exposed to sunlight.
\[\ce{4HNO3 ->[\Delta][Sun light] 4NO2 + 2H2O + O2}\]
APPEARS IN
RELATED QUESTIONS
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.
Give two chemical equations for the following:
Reactions of nitric acid with non-metals
Give two chemical equations for the following:
Nitric acid showing as acidic character.
Give two chemical equations for the following:
Nitric acid acting as the oxidizing agent
The chemical used in the brown ring test is ______.
Give reason for the following:
Conc. Nitric acid renders iron passive.
Name the compounds required for the laboratory preparation of nitric acid.
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
Write the equation for the reaction of dilute nitric acid with copper.
