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प्रश्न
Name the following :
Gas produced in air during lighting.
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उत्तर
Gas produced in air during lighting is Nitric Oxide.
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संबंधित प्रश्न
Ammonia is used in the Ostwald process.
Name the oxidising agent used in this process.
Give two chemical equations for the following:
Reactions of nitric acid with non-metals.
- Name the process used for the manufacture of nitric acid.
- What are the reactants required for it and what are their sources?
- In which ratio reactants are taken in this process?
- Name the catalyst used in the process.
- What is the oxidizing agent in this process?
- Write the equations involved.
Give reason for the following:
In laboratory preparation of nitric acid all the apparatus including cork should be made up of glass.
Write balanced equation and name the product formed when :
Concentrated nitric acid is heated.
Fill in the blank with appropriate word/words.
3 Cu + 8 HNO3 (dilute) → _______ + 4H2O + _________
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
Write balanced equation for the reaction between nitrogen and oxygen, when lightning strikes.
What is the special feature of the apparatus that is used in the laboratory preparation of nitric acid?
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.
