Form addition products with unsaturated hydrocarbons.
Behave as strong reducing agent.
Show Solution
The Correct Option isD
Solution and Explanation
Step 1: Go option by option
(A), (B) and (C) match known behaviour. For (D), the halogens in higher oxidation states tend to gain electrons, which makes them oxidisers.
Final Answer:
Option (D).
\[ \boxed{\text{(D)}} \]