Aromatic HydrocarbonsmediumMCQ SINGLE⭐ Must-Do

Direct iodination of benzene using is highly reversible due to the formation of hydroiodic acid (). Aromatic Hydrocarbons Chemistry Question

Question

Direct iodination of benzene using $I_2$ is highly reversible due to the formation of hydroiodic acid ($HI$). Which type of reagent must be added to force the reaction to completion?

Answer: B

💡 Solution & Explanation

$HI$ is a powerful reducing agent that rapidly converts iodobenzene back to benzene. Strong oxidizers like $HNO_3$ or $HIO_3$ must be added to consume the $HI$ and convert it back into $I_2$, driving the equilibrium forward.

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