Question

Which of the following exists as white salt in anhydrous state?

• A. $Cu{F}_2$
• B. $CuS{O}_4$
• C. Both (A) and (B)
• D. None of the above

Answer 1

The correct option is C Both (A) and (B)

The anhydrous salts of copper such as $Cu{F}_2$ and $CuS{O}_4$ have white colour.
This is because of the absence of water molecules (ligands), there is no splitting of d-orbitals in anhydrous copper salts.
Hydrated copper sulphate (which contains 5 molecules of water) is blue in colour.