MDCAT Chemistry MCQ #5395

Concentrated Sulfuric acid is poured over a sample of cane sugar, resulting in a black charring mass. What chemical mechanism occurs?

MDCAT Chemistry MCQ #5395

  1. Question 1

    Q1. Concentrated Sulfuric acid is poured over a sample of cane sugar, resulting in a black charring mass. What chemical mechanism occurs?

    • A) Dehydration of sugar to carbon
    • B) Oxidation of sugar to CO2
    • C) Hydrolysis of sugar to glucose
    • D) Sulfonation of the sugar ring

    Answer: Dehydration of sugar to carbon

    Explanation: Sulfuric acid acts as a powerful dehydrating agent on sugar; oxidizing agent is tempting but dehydration is the dominant visible reaction.