Question

The element which shows both positive & negative oxidation state is :

Answer 1

Answer:

Halogen

Explanation:

All the other halogens-chlorine, bromine and iodine- exhibit positive oxidation states upto +7, apart from the most stable negative state of -1. But fluorine is more electronegative than any other element in the periodic table and so it cannot be assigned a positive oxidation number in its compounds.