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Copper sulphate is commercially made fro...

Copper sulphate is commercially made from copper scraps by

A

Dissolving in hot conc. `H_(2)SO_(4)`

B

The action of dil. `H_(2)SO_(4)` and air

C

Heating with sodium sulphate

D

Heating with sulphur

Text Solution

Verified by Experts

The correct Answer is:
B
`2Cu+2H_(2)SO_(4)+O_(2)rarr 2CuSO_(4)+2H_(2)O`
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Why hydrated copper sulphate is blue while anhydrous copper sulphate is white?

Statement : At the end of electrolysis using platinum electrodes, an aqueous solution of copper sulphate turn colourless. Explanation : Copper in copper sulphate is converted to copper hydroxide during the electrolysis.

Pure copper sulphate can be obtained from an impure sample by the process of:

Hydrated copper sulphate is

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  7. AgCl when heated with Na(2)CO(3) gives

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