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प्रश्न
Give three equations of the reaction to prove that nitric acid is an acid.
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उत्तर
Three equations to prove acidic nature of nitric acid are-
(a) Reaction with basic oxide :-
\[\ce{CaO + 2HNO3 -> Ca(NO3)2 + H2O}\]
(b) Reaction with carbonates and hydrogen carbonates :-
\[\ce{Na2CO3 + 2HNO3 -> 2NaNO3 + H2O(I) + CO2}\]
\[\ce{NaHCO3 + HNO3 -> NaNO3 + H2O + CO2}\]
(c) Reaction with metallic sulphites :-
\[\ce{Na2SO3 + 2HNO3 -> 2NaNO3 + SO2 + H2O}\]
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संबंधित प्रश्न
Name a metal nitrate which on heating is changed into metal oxide.
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.
Choose the correct answer from the option given below :
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On warming ammonium sulphate with sodium hydroxide solution.
Write the equation for the reaction of dilute nitric acid with copper.
What would you observe in the following case:
Copper is heated with concentrated nitric acid in a hard glass test tube.
Identify the gas evolved when sulphur is treated with concentrated nitric acid.
The figure given below illustrates the apparatus used in the laboratory preparation of nitric acid.

- Name A (a liquid), B (a solid), and C (a liquid). (Do not give the formulae.)
- Write an equation to show how nitric acid undergoes decomposition.
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Give a balanced equation for the following reaction:
Copper reacts with concentrated nitric acid.
