D) blue crystals of copper sulphate on heating in a dry test tube become colourless.
Answers
Answered by
0
Copper sulphate is chemically bonded with water to give crystalline blue colour.
On heating, water gets evaporated and the bond between copper sulphate and water is break.
Thus blue colour vanishes or becomes colourless.
Hope my answer helps you........if it helps u mark me as brainliest.
On heating, water gets evaporated and the bond between copper sulphate and water is break.
Thus blue colour vanishes or becomes colourless.
Hope my answer helps you........if it helps u mark me as brainliest.
Answered by
1
Answer:
Blue crystals of copper sulphate are hydrated crystals. They contain water of crystallisation loosely attached to their molecules. On heating, they evaporated and changed to steam. This made the copper sulphate crystals anhydrous which changed their colour.
Similar questions