Question

Write the differences between valency and Oxidation State.

Answer 1

Valency	Oxidation State
It is the combining capacity of an element.	It is the charge which an atom has or appears to have when present in combined state.
It is a whole number only.	It can be positive or negative.
It cannot be zero.	It can be zero.
It cannot have fractional values.	It can be in fraction also.
The valency may be variable but variation is limited.	The variation in oxidation state is too large.