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NEET2004ChemistryCarboxylic Acid DerivativesActual

The OH group of an alcohol or the COOH group of a carboxylic acid can be replaced by - Cl using:

Options

  1. Aphosphorus pentachloride
  2. Bhypochlorous acid
  3. Cchlorine
  4. Dhydrochloride acid

Correct answer

A. phosphorus pentachloride

Step-by-step solution

PCl ₅ on reaction with alcohol and carboxylic acid, replace - OH group with - Cl . aligned ROH + PCl ₅ RCl & + POCl ₃+ HCl RCOOH + PCl ₅ & RCOCl ^2 + & POCl ₃+ HCl aligned Related Theory PCl ₅ is used as a chlorinating agent and dehydrating agent for the synthesis of pesticides, phosphite antioxidants, plasticizers and stabilizers for plastic and elastomers etc

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