Q. 4-Nitrotoluene is treated with bromine to get P. ‘P’ is reduced with Sn/HCl to get compound ‘Q\ ‘Q’ is diazotised and the product is treated with phosphinic acid to get compound ‘R’. ‘R’ is oxidised with alkaline KMnO4 to get ‘S’. Compound ‘S’ is
✅ Correct Answer: (B)
2-Bromo benzoic acid