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प्रश्न
What is the purpose of Conc. H2SO4 in the above preparation?
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उत्तर
Concentrated sulphuric acid is non-volatile and produce volatile nitric acid.
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संबंधित प्रश्न
Name the gas evolved when the following mixtures are heated.
Sodium nitrite and ammonium chloride.
Explain the following:
Concentrated nitric add appears yellow when it is left standing in a glass bottle.
How will you prepare the following from nitric acid?
Magnesium nitrate
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.
How will you prepare Aqua regia from nitric acid?
Complete and balance the following equation :
HNO3 + FeSO4 + H2SO4 → ______________
Choose the correct answer from the option given below:
The catalyst used in the manufacture of HNO3 by Ostwald process is
Fill in the blank with appropriate word/words.
98% nitric acid is obtained by distilling 68% nitric acid with ________ under ______
Give reason for the following:
Commercial concentrated nitric acid is yellow in colour, but when it is dilute with water, it turns colourless.
Give one chemical test for nitric acid.
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
