Question

Which of the following statements is not true for halogens?

Options

• All but fluorine show positive oxidation states.

• All are oxidizing agents.

• All form monobasic oxyacids.

• Chlorine has the highest electron gain enthalpy.

Answer 1

All but fluorine show positive oxidation states.

Explanation:

Fluorine is the most electronegative element and shows only −1 oxidation state. Other halogens can exhibit positive oxidation states like +1, +3, +5, +7. Thus, the statement that all but fluorine show positive oxidation states is true.