Question

Crystal of a substance chanhed their colour on heating in a closed testtube

Answer 1

Copper sulphate crystals (CuSO₄.5H₂O) 5 molecules of water are present in one formula unit of copper sulphate. When heated, its loses its water and salt turns white.

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Answer 2

Hey......

Copper sulphate crystals (CuSO₄.5H₂O) 5 molecules of water are present in one formula unit of copper sulphate. When heated, its loses its water and salt turns white.