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प्रश्न
Choose the correct answer from the option given below :
Nitric acid on standing develops brownish colour which may be attributed to the presence of :
विकल्प
\[\ce{No^{+}_{2}}\]
\[\ce{NO^{-}_{3}ions}\]
NO2
HNO2
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उत्तर
NO2
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संबंधित प्रश्न
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.
Name the catalyst used in Ostwald process.
Give reason for the following:
In laboratory preparation of nitric acid all the apparatus including cork should be made up of glass.
Give reason for the following:
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Fill in the blank with appropriate word/words.
Aqua regia is a mixture of _______ and________
Name (formula is not acceptable) the gas produced in the following reaction:
By the action of concentrated nitric acid on copper.
Write the equation to show the reaction between the following:
Dilute nitric acid to produce carbon dioxide.
Explain, why only all glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
What is the special feature of the apparatus that is used in the laboratory preparation of nitric acid?
What is the property of nitric acid which allows it to react with copper?
