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Benzamide (A) is prepared by heating ben...

Benzamide (A) is prepared by heating benzoic acid with ammonia. It undergoes the following reactions:
`A underset("reaction 1")overset(Br_(2),KOH, Delta)(to) B underset(273-278K "reaction 2")overset(NaNO_(2),HCl)(to) C underset(Delta "reaction 3")overset(H_(3)PO_(2),H_(2)O)(to) D underset(anhyd AlCl_(3) "reaction 4")overset(CH_(3)Cl)(to) E`
E on heating with acidic `KMnO_(4)` gives back benzoic acid.
2. Write the chemical reaction for reaction 3

Text Solution

AI Generated Solution

To write the chemical reaction for reaction 3, we need to identify the reactants and products involved in this specific step. Based on the provided information, we can summarize the reactions leading up to reaction 3 as follows: 1. **Starting Material (C)**: The product from reaction 2 is benzene diazonium chloride (C). 2. **Reagent for Reaction 3**: The reagent used in reaction 3 is phosphorous acid (H₃PO₂) in the presence of water. ### Step-by-Step Solution: 1. **Identify the Reactants**: ...
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