Section C: Give a short answer to the question given below.
Why do copper sulphate crystals turn white when heating?
Copper sulphate crystals (\(CuSO_4⋅5H_2O\)) are blue due to the presence of of crystallisation. When heated, these crystals lose their water molecules and become anhydrous copper sulfate (\(CuSO_4\)), which is white.
The reaction is as follows:
\(CuSO_4⋅5H_2O\) \(\overset{Heat}{\rightarrow}\) \(CuSO_4\) + \(5H_2O\)
This dehydration process removes the water of crystallization, causing the .