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प्रश्न
Give reason for the following:
When concentrated sulphuric acid is added to blue crystalline copper sulphate, it turns powdery white.
उत्तर
When concentrated sulphuric acid is added to blue crystalline copper sulphate, it removes water from salt and turns it into powdery white.
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संबंधित प्रश्न
Write balanced chemical equations to show The dehydrating property of conc. Sulphuric acid with sugar.
State the inference drawn from the following observations:
Salt S is prepared by reacting dilute sulphuric acid with copper oxide. Identify S.
Give two balanced reactions of each type to show the following property of sulphuric acid:
Oxidising agent
Give a chemical test to distinguish between dilute sulphuric acid and dilute hydrochloric acid.
Name the following :
The precipitate obtained by treating aqueous lead nitrate with dilute sulphuric acid.
Give reason for the following:
Cotton clothes get burnt with concentrated sulphuric acid.
How are the following conversion brought about? Give equation and condition:
Oxalic acid to carbon monoxide.
Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Lead sulphate from lead nitrate.
Give a balanced chemical equation for the action of sulphuric acid of the following:
Sulphur
Identify the gas evolved and give the chemical test in the following case:
Dilute hydrochloric acid reacts with iron (II) sulphide.
