Question

Variable oxidation states are shown by d-block elements.

• A. TRUE
• B. FALSE

Answer 1

The correct option is A TRUE

D- block elements show variable oxidation states because there is a very small energy difference in between (n-1)d and ns orbitals. As a result ,electrons of (n-1)d orbitals as well as ns-orbitals take part in bond formation. Due to orbitals of two different energy levels taking part in bond formation variable oxidation states are possible.