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प्रश्न
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
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उत्तर
In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitrate should not be heated very strongly, above 200°C because a higher temperature can cause following problems:
1. Nitric acid would decompose to form nitrogen dioxide.
2. Sodium sulphate is formed which may stick to the glass and cannot be removed easily.
3. The glass apparatus may break.
संबंधित प्रश्न
Give two chemical equations for the following:
Reactions of nitric acid with non-metals.
How will you prepare the following from nitric acid?
Ferric nitrate
Why is freshly prepared ferrous sulphate solution used for testing the nitrate radical in the brown ring test?
What is meant by the following term?
Decrepitation
Give reason for the following:
Concentrated nitric acid is a stronger oxidizing agent.
What happen when (Given balanced equation):
Limestone reacts with nitric acid?
Choose the correct answer from the option given below :
Nitric acid on standing develops brownish colour which may be attributed to the presence of :
State the conditions for the oxidation of ammonia to nitrogen monoxide [nitric oxide], in the manufacture of nitric acid by Ostwald's process. Write the balanced equcation for the reaction.
During a thunderstorm, the rainwater contains nitric acid. The nitric acid is formed as a result of three chemical reactions. Describe or write balanced chemical equation for these three reactions.
The first step in the manufacture of nitric acid is the catalytic oxidation of ammonia. What is the name of the catalyst?
