What is the effect of shaking dilute $H_2SO_4$ with a small quantity of anhydrous $CuSO_4$?

  • A
    The white solid dissolves to form a colourless solution
  • B
    The white solid dissolves to form a green solution
  • C
    The white solid turns blue but does not dissolve
  • D
    The white solid dissolves to form a blue solution

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