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Choose the accurate sequence of chemical reactions.

1. KMnO4 in the presence of KOH
2. Conversion of COOH to COOC2H5
3. Reaction with Br2 and FeCl3
4. C2H5OH reacts with H+ to form Br

Correct answer: Conversion of COOH to COOC2H5

Solution

Option B represents the esterification reaction where a carboxylic acid reacts with an alcohol to form an ester, which is a well-known organic reaction.

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