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प्रश्न
What would you see, when a crystal of CuSO4.5H2O is placed in concentrated sulphuric acid? Give reason to explain your observation.
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उत्तर
When crystals of CuSO4.5H2O is placed in concentrated sulphuric acid, it removes the water of crystallization of hydrated salt and renders them anhydrous. Its colour change to white.
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संबंधित प्रश्न
Identify the acid in the following case:
The acid on mixing with lead nitrate solution produces a white precipitate, which is insoluble even on heating.
Why is concentrated sulphuric acid kept in air tight bottles?
Give reason for the following:
When solution of sulphur dioxide is exposed to air, it gets converted to sulphuric acid.
Give reason for the following:
When concentrated sulphuric acid is added to sugar/glucose, a black mass is left behind.
Give reason for the following:
H2SO4 cannot be prepared by heating sodium sulphate with conc. HCl or HNO3
What do you observe when barium chloride solution is added to dilute sulphuric acid ?
Write the balanced chemical equation for the following conversion:
Copper sulphate from copper and concentrated sulphuric acid.
Identify the salts P and Q from the observation given below:
On performing the flame test salt P produces a lilac coloured flame and its solution gives a white precipitate with silver nitrate solution. Which is soluble in ammonium hydroxide solution.
Give a chemical test to distinguish between dilute sulphuric acid and dilute hydrochloric acid (using lead nitrate solution).
The gas evolved when dilute sulphuric acid reacts with iron sulphide.
