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प्रश्न
Write balanced equation for the reaction between nitrogen and oxygen, when lightning strikes.
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उत्तर
\[\ce{N2 + O2 ->[lightning] 2NO}\]
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संबंधित प्रश्न
Explain the following:
An all-glass apparatus is used in the laboratory preparation of nitric acid.
How will you prepare the following from nitric acid?
Ferric nitrate
What is meant by the following term?
Decrepitation
What is the purpose of Conc. H2SO4 in the above preparation?
How will you prepare Aqua regia from nitric acid?
What do you observe when?
Hydrogen sulphide is bubbled through conc. HNO3?
Name the compounds required for the laboratory preparation of nitric acid.
Write the equation for the reaction of dilute nitric acid with copper.
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
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.
