MDCAT Chemistry MCQ #376

In the industrial synthesis of lactic acid, acetaldehyde is first reacted with a specific reagent to form a cyanohydrin. Which reagent is used?

MDCAT Chemistry MCQ #376

  1. Question 1

    Q1. In the industrial synthesis of lactic acid, acetaldehyde is first reacted with a specific reagent to form a cyanohydrin. Which reagent is used?

    • A) Sodium bisulphite
    • B) Ammonia
    • C) Hydrogen cyanide
    • D) Hydrazine

    Answer: Hydrogen cyanide

    Explanation: Cyanohydrins are formed by HCN addition; subsequent hydrolysis of the -CN group yields alpha-hydroxy acids like lactic acid.