Q. Which of the following statement is wrong?
A Metals in highest oxidation states are more stable in oxides than in fluorides,
B All elements of \(3 d\) series exhibit variable oxidation states.
c In highest oxidation states, the transition metals show acidic character.
D \(\mathrm{Mn}^{3+}\) and \(\mathrm{Co}^{3+}\) are oxidizing agents in aqueous solution.