Q. In context with the transition elements, which of the following statements is incorrect?
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 and form 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.
Explanation
(b)
As oxidation state increases, electronegativity increases thus acidic characteristic increases not basic.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.