Which one of the following is reduced with zinc and hydrochloric acid to give the corresponding hydrocarbon

Which one of the following is reduced with zinc and hydrochloric acid to give the corresponding hydrocarbon?

  1. Acetic acid
  2. Butan­-2-­one
  3. Ethyl acetate
  4. Acetamide

Answer

Butan-­2-­one will get reduced into butane when treated with zinc and hydrochloric acid following Clemmensen reaction whereas Zn/HCl do not reduce ester, acid and amide.

The correct option is B.