In the following reaction, $ \boxed{\text{COOH}}$ $\xrightarrow{\text{Conc. HNO}_3 / \text{Conc. H} _2\text{SO}_4}$ ? The product is -

Asked in Food Safety Officer 2022 · Topic: Organic Chemistry (Aliphatic and Aromatic Hydrocarbons: Nomenclature, preparation, reactions of alkanes, alkenes, alkynes, benzene and its derivatives; concept of aromaticity.)

1. o-nitro benzoic acid
2. p-nitro benzoic acid
3. m-nitro benzoic acid
4. Benzene

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