CBSE Class 11-science Answered

Aqueous KOH results into substitution reaction.

Cl₃C−CH₂−CH₃+3KOH(aq)→(OH)₃C−CH₂−CH₃+3KCl

It may be noted that more than one OH group cannot be present on the same carbon atom. In such a case, the compound will be extremely unstable and will readily lose a water molecule to form more stable propionic acid.

(OH)₃C−CH₂−CH₃?HOOC−CH₂−CH₃+H₂O

Thus, propionic acid is the major product along with water molecule.

Hence, the corrrect option is propionic acid (option 2).