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 KMn04 to get ‘S’. Compound ‘S’ is (a) 2-Bromo-4-hydroxy benzoic acid (b) 2-Bromo benzoic acid (c) 3-Bromo benzoic acid (d) 4-Bromo benzoic acid

4-Nitrotoluene is treated with bromine to get P. ‘P’ is reduced wi

1.	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 KMn04 to get ‘S’. Compound ‘S’ is (a) 2-Bromo-4-hydroxy benzoic acid (b) 2-Bromo benzoic acid (c) 3-Bromo benzoic acid (d) 4-Bromo benzoic acid
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