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प्रश्न
Name the Following:
Two coloured nitrates.
उत्तर
Copper nitrate is blue coloured, Cobalt nitrate is Coloured.
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संबंधित प्रश्न
Explain the following:
Concentrated nitric add appears yellow when it is left standing in a glass bottle.
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 action of heat on X.
- Write the equation between solution X and gas Z.
Name the Following:
Gas obtained by treating manganese with 1% nirtric acid.
Give reason for the following:
Conc. Nitric acid renders iron passive.
Give reason for the following:
Aqua regia dissolves gold and platinum.
What do you observe when?
Scrap zinc is heated with conc. HNO3?
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
What is the special feature of the apparatus that is used in the laboratory preparation of nitric acid?
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
Give one test to distinguish between the following pair of chemicals.
Zinc nitrate solution and calcium nitrate solution.
