State one appropriate observation for each of the following: Concentrated sulphuric acid is added drop wise to a crystal of hydrated copper sulphate.

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Solution

In this reaction concentrated sulphuric acid acts as a strong dehydrating agent. It dehydrates the salt and the colour changes from blue to colourless.
$C u S O_{4} .5 H_{2} O c o n c . H_{2} S O_{4} \to C u S O_{4} + 5 H_{2} O$

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Similar questions

Q. State one relevant observation for each of the following reactions:
Action of concentrated Sulphuric acid on hydrated copper sulphate.

What would you observe in the following cases?
(i) Sulphur trioxide is dissolved in water on a large scale.
(ii) Concentrated sulphuric acid is added to equal volumes of cold water.
(iii) 100 ml of 98% sulphuric acid is kept open.
(iv) Hot concentrated sulphuric acid is added to sodium chloride crystals.
(v) Dilute sulphuric acid is added to ferrous sulphate solution.

Q. When concentrated sulphuric acid is added to copper sulphate it gives :

Q. State your observations when:
(i) Dilute hydrochloric acid is added to lead nitrate solution and the mixture is heated.
(ii) Barium chloride solution is mixed with sodium sulphate solution.
(iii) Concentrated sulphuric acid is added to sugar crystals.
(iv) Dilute hydrochloric acid is added to copper carbonate.
(v) Dilute hydrochloric acid is added to sodium thiosulphate.

Q. Why is dilute sulphuric acid added during crystallization of copper sulphate?

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State one appropriate observation for each of the following: Concentrated sulphuric acid is added drop wise to a crystal of hydrated copper sulphate.

In this reaction concentrated sulphuric acid acts as a strong dehydrating agent. It dehydrates the salt and the colour changes from blue to colourless.CuSO4.5H2Oconc.H2SO4→CuSO4+5H2O

In this reaction concentrated sulphuric acid acts as a strong dehydrating agent. It dehydrates the salt and the colour changes from blue to colourless.
$C u S O_{4} .5 H_{2} O c o n c . H_{2} S O_{4} \to C u S O_{4} + 5 H_{2} O$