Question

Which of the following oxidizing agent is used for the iodination of methane?

• A. HI
• B. KMnO\(_4\)
• C. K\(_2\)Cr\(_2\)O\(_7\)
• D. HIO\(_3\)
• E. K\(_2\)CrO\(_4\)

Hint:

For the iodination of methane, HIO\(_3\) (Iodic acid) is the suitable oxidizing agent as it facilitates the substitution of iodine.

Answer 1

The Correct Option is D

In the iodination of methane, iodine atoms are substituted in place of hydrogen atoms of methane molecules. The reaction requires an oxidizing agent to facilitate the process. - Option (A): HI (Hydroiodic acid) is not an oxidizing agent but is instead used as a reagent to provide the iodine source in halogenation reactions. It does not act as an oxidizer for iodination. - Option (B): KMnO\(_4\) (Potassium permanganate) is a strong oxidizing agent but is typically used for oxidation reactions involving organic compounds, not specifically for iodination.
- Option (C): K\(_2\)Cr\(_2\)O\(_7\)(Potassium dichromate) is a powerful oxidizing agent, but it does not typically participate in iodination reactions. - Option (D): (D) HIO\(_3\)(Iodic acid) is used in the oxidation and iodination of methane. It is a suitable oxidizing agent in the iodination reaction because it facilitates the substitution of iodine into methane. - Option (E): K\(_2\)CrO\(_4\)(Potassium chromate) is also an oxidizing agent but not used for iodination of methane.
Thus, the correct answer is (D) HIO\(_3\), which is used in the iodination of methane.