Which halogen cannot show oxidation state more than zero ?

Which halogen does not show +7 oxidation state?

Which halogen does not show variable oxidation state?

Which member of the halogen family (X) does not show oxidation state of +1?

Which halogen does not exhibit the oxidation state of +1?

Which halogen does not exhibit the oxidation state of +1?

Which of the following elements does not show an oxidation state higher than +2 ?

The halogens which show positive oxidation states are

The halogen that shows same oxidation state in all its compounds with other element is

Halogens react with each other to form a number of compounds called interalogen compounds. Their genral formula is AX_(n) , where A is less electronegative halogen while X is a more electronegative halogen and n is its number. The interhalogen compounds are essentially convalent and more reactive than the halogens since the bond A-X is weaker than A-A or X-X bond. The reaction of interhalogens are similar to those of halogens. Which halogen shows maximum oxidation state in forming interhalogen compound ?