JEE Main levelSingle correct optionDifficulty 2 of 3nc137
4-Bromo-2-methylaniline is diazotised with NaNOX2 / dil. HCl at 273-278 K and the product is treated with HX3POX2 and water. The final organic product is
A4-bromotoluene
B3-bromotoluene (1-bromo-3-methylbenzene)
C2-bromotoluene
D4-bromo-2-methylphenol
Answer: B
Treatment with HX3POX2 replaces the diazonium group by hydrogen (deamination). The remaining groups are CH3 at C-2 and Br at C-4 relative to the former amino carbon C-1, so they are 1,3 to each other. The product is 3-bromotoluene.