$R-CH_2-COOH \xrightarrow[(ii) H_2O]{(i) Cl_2 / \text{Red phosphorus}} R-CH(Cl)-COOH$
The above reaction is known as

  • A
    Friedel-Crafts reaction
  • B
    Kolbe-Schmidt reaction
  • C
    Hell-Volhard-Zelinsky reaction
  • D
    Cannizzaro reaction

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