Question

Which of the following halogens does not exhibit a positive oxidation state?

• A. I
• B. Br
• C. Cl
• D. F

Hint:

Fluorine is the only halogen that does not exhibit positive oxidation states due to its high electronegativity.

Answer 1

The Correct Option is D

Step 1: Understanding halogen oxidation states.
Halogens typically exhibit negative oxidation states (-1) in most compounds, but they can also exhibit positive oxidation states. Fluorine, however, is highly electronegative and does not form positive oxidation states. Step 2: Analysis of options.
(A) I: Iodine can form positive oxidation states, such as +1, +3, +5, and +7.
(B) Br: Bromine can form positive oxidation states, such as +1, +3, +5, and +7.
(C) Cl: Chlorine can form positive oxidation states, such as +1, +3, +5, and +7.
(D) F: Fluorine always has an oxidation state of -1 due to its high electronegativity.
Step 3: Conclusion.
The correct answer is (D) because fluorine does not exhibit a positive oxidation state.