MCQ
Which of the following statements is not correct?
- ✓Copper liberates hydrogen from acids.
- BIn its higher oxidation states, manganese forms stable compounds with oxygen and fluorine.
- C$Mn^{3+}$ and $Co^{3+}$ are oxidising agents in aqueous solution.
- D$Ti^{2+}$ and $Cr^{2+}$ are reducing agents in aqueous solution.
