MDCAT Chemistry MCQ #659

A chemical engineer selects a specific reagent to produce ethyl chloride because the by-products are gases and escape easily. Which reagent is used?

MDCAT Chemistry MCQ #659

  1. Question 1

    Q1. A chemical engineer selects a specific reagent to produce ethyl chloride because the by-products are gases and escape easily. Which reagent is used?

    • A) Phosphorus trichloride
    • B) Thionyl chloride
    • C) Phosphorus pentachloride
    • D) Hydrochloric acid

    Answer: Thionyl chloride

    Explanation: Thionyl chloride produces gaseous SO2 and HCl, simplifying purification. Phosphorus trichloride is tempting but yields liquid H3PO3 which requires distillation.