MDCAT Chemistry MCQ #490

A student uses 50 mL of 0.2 M KMnO4 to oxidize an aldehyde. How many moles of aldehyde reacted?

MDCAT Chemistry MCQ #490

  1. Question 1

    Q1. A student uses 50 mL of 0.2 M KMnO4 to oxidize an aldehyde. How many moles of aldehyde reacted?

    • A) 0.010 mol
    • B) 0.020 mol
    • C) 0.005 mol
    • D) 0.015 mol

    Answer: 0.010 mol

    Explanation: 0.05 L × 0.2 M = 0.01 mol KMnO4. 1:1 ratio with aldehyde (B doubles for wrong stoichiometry).