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Chemistry · PYQ NEET UG 2021
हिन्दीThe reagent ‘R’ in the given sequence of chemical reaction is: (See structure on image page 1)
Correct answer · Option 1
\( \text{CH}_3\text{CH}_2\text{OH} \)
Explanation
The conversion of benzene diazonium chloride (\( \text{C}_6\text{H}_2\text{Br}_3\text{N}_2^+\text{Cl}^- \)) to tribromobenzene involves replacing the diazonium group with hydrogen. This is reductive deamination achieved using \( \text{CH}_3\text{CH}_2\text{OH} \) (ethanol) or hypophosphorous acid.
