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प्रश्न
Give reason for the following:
Concentrated nitric acid is a stronger oxidizing agent.
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उत्तर
Concentrated nitric acid is a stronger oxidizing agent due to nascent oxygen which it gives on decomposition.
\[\ce{\underset{\text{Conc.}}{2HNO3} -> H2O + 2NO2 + \underset{\text{nascent oxygen}}{[O]}}\]
\[\ce{\underset{\text{Dilute}}{2HNO3} -> H2O + 2NO + \underset{\text{nascent oxygen}}{3[O]}}\]
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संबंधित प्रश्न
Name the products formed when dilute HNO3 is added to copper.
Name a metal nitrate which on heating is changed into metal oxide.
Mention three important uses of nitric acid. Give the property of nitric acid involved in the use.
Why is freshly prepared ferrous sulphate solution used for testing the nitrate radical in the brown ring test?
The action of heat on the blue crystalline solid X gives a reddish brown gas Y, a gas which re-lights a glowing splint and leaves a black residue. When gas Z, which has a rotten egg smell, is passed through a solution of X, a black ppt. is formed.
- Identify X, Y and Z.
- Write the equation for the action of heat on X.
- Write the equation between solution X and gas Z.
Why is freshly prepared ferrous sulphate solution used in the ring test?
Complete and balance the following equation :
Fe + HNO3(conc.) → _____________
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.
State, what is observe when nitric acid is kept in a reagent bottle for a long time.
Explain why nitric acid is kept in a reagent bottle for a long time.
