Question

When water is added to anhydrous white copper sulphate, the color will change to:

• A. Yellow
• B. Green
• C. Blue
• D. Red

Hint:

The blue color of hydrated copper sulphate is a classic example of a physical change where the compound's color changes due to the absorption of water.

Answer 1

The Correct Option is C

When water is added to anhydrous white copper sulphate (CuSO\(_4\)), it forms hydrated copper sulphate (CuSO\(_4\).5H\(_2\)O), which is blue in color. This is a well-known chemical reaction that indicates the presence of water.
Thus, the correct answer is (C) Blue.