Question

crystals of copper sulphate is heated in a test tube for some time what is the colour of copper sulphate before heating and after heating

Answer 1

Originally Answered: When the crystals of copper sulphate is strongly heated, the colour of residue is? Copper Sulphate crystals are blue in colour due to the presence of 5 molecules of water of crystallisation. Thus anhydrous Copper Sulphate is white in colour and looks like talcum powder.

Answer 2

The colour will not change even after heating. It will remain blue only.