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प्रश्न
Name the gas evolved when the following mixtures are heated.
Sodium Nitrite and Ammonium Chloride
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उत्तर
Nitrogen
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संबंधित प्रश्न
Why is the temperature maintained at 200°C in the above reaction?
What happen when (Given balanced equation) :
Nitric acid is dissolved in large amount of water?
Complete and balance the following equation :
FeSO4 + NO + H2O → ______________
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
Complete and balance the following equation:
Cu + HNO3 → NO2 + ________+ _________
Name (formula is not acceptable) the gas produced in the following reaction:
On warming ammonium sulphate with sodium hydroxide solution.
Why should the temperature of the reaction mixture of nitric acid not be allowed to rise above 200oC?
Balanced equation of oxidation of carbon with concentrated HNO3
Give one test to distinguish between the following pair of chemicals.
Zinc nitrate solution and calcium nitrate solution
X, Y and Z are three crystalline solids that are soluble in water and have a common anion.
To help you to identify X, Y and Z, you are provided with the following experimental observations. Copy and complete the corresponding inferences in (a) to (e).
- A reddish-brown gas is obtained when X, Y and Z are separately warmed with concentrated sulphuric acid and copper turning added to the mixture.
INFERENCE 1: The common anion is the ______ ion. - When X is heated, it melts and gives off only one gas which re-lights a glowing splint.
INFERENCE 2: The cation in X is either ______ or ______. - The action of heat on Y produces a reddish-brown gas and yellow residue which fuses with a glass of the test tube.
INFERENCE 3: The metal ion present in Y is the ______ ion. - When Z is heated, it leaves no residue. Warming Z with sodium hydroxide solution liberates a gas which turns moist red litmus paper blue.
INFERENCE 4: Z contains the ______ cation. - Write the equations for the following reactions:
- X and concentrated sulphuric acid (below 200°C). (One equation only for either of the cations given in INFERENCE 2)
- The action of heat on Y.
- Concentrated nitric acid is added to copper turnings kept in a beaker.
