Q. Variable oxidation state and degenerated orbital shows
A) $s$-block elements
B) $p$-block elements
C) $d$-block elements
D) All of these
Explanation
(c)
The general electronic configuration of $d$-block element is $(n - 1)d^{1 - 10},ns^{1 - 2}.$ They show variable oxidation state because $d$-electrons also take part in bond formation. They have degenerated orbitals. $s$ and $p$-block elements in general do not show variable oxidation states.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.