What is the colour of copper(II) sulfate solution?
Ayellow
BblueCORRECT
Cgreen
Dcolourless
WAECChemistry
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Why the answer is B, and why the others tempt you.
CuSO₄ solution (with hydrated Cu²⁺ ions) is blue. Anhydrous CuSO₄ is white.
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