Question

What is the color of anhydrous copper sulphate?

Answer 1

The colour of anhydrous copper sulphate ($CuS{O}_4$) is white.
1. The color of hydrated Copper sulphate ($CuS{O}_4.5H_{2}O$) is blue.
2. When the crystals of hydrated Copper sulphate ($CuS{O}_4.5H_{2}O$) are heated, the colour changes from blue to white due to the loss of water. The compound will be called anhydrous Copper Sulphate ($CuS{O}_4$).