Ethanol is treated with $SOCl X_{2}$ to give A. A is heated with alcoholic KCN to give B. B is refluxed with dilute HCl to give C. C is treated with $Cl X_{2}$ in the presence of red phosphorus to give D. D is

A3-chloropropanoic acid
Bpropanoyl chloride
C2-chlorobutanoic acid
D2-chloropropanoic acid

Answer: D

A is chloroethane, B is propanenitrile, C is propanoic acid. The Hell-Volhard-Zelinsky reaction halogenates the alpha carbon of a carboxylic acid, so D is

CH X_{3} CHClCOOH

, 2-chloropropanoic acid.

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Ethanol is treated with SOClX2​ to give A. A is heated with alcoholic KCN to give B. B is refluxed with dilute HCl to give C. C is treated with ClX2​ in the presence of red phosphorus to give D. D is

Answer: D

More questions on Roadmap problems

Ethanol is treated with $SOCl X_{2}$ to give A. A is heated with alcoholic KCN to give B. B is refluxed with dilute HCl to give C. C is treated with $Cl X_{2}$ in the presence of red phosphorus to give D. D is