In context with the transition elements, which of the following statements is incorrect?

Options

A. In addition to the normal oxidation state, the zero oxidation state is also shown by these elements in complexes.
B. In the highest oxidation state, the transition metal shows basic character of its oxide, and form the cationic complexes.
C. In the highest oxidation state of the first five transition elements (Sc to Mn), all the 4s and 4d electrons are used for bonding.
D. Once the `d^(5)` configuration is exceeded, the tendency to involve all the 3d electrons in bonding decreases.

Answer

B

Explanation

As the oxidation state increases, the electronegativity increases. Thus, the acidic characteristic increases. So, basic characteristic greater is lower oxidation state and acidic character predominates with the increase in oxidation state.