MDCAT Chemistry MCQ #488

If 3.0 g of formaldehyde is oxidized with 4.0 g of Ag2O, what is the limiting reagent? (Molar masses: CH2O = 30 g/mol, Ag2O = 232 g/mol)

MDCAT Chemistry MCQ #488

  1. Question 1

    Q1. If 3.0 g of formaldehyde is oxidized with 4.0 g of Ag2O, what is the limiting reagent? (Molar masses: CH2O = 30 g/mol, Ag2O = 232 g/mol)

    • A) Formaldehyde
    • B) Ag2O
    • C) Neither
    • D) Both

    Answer: Formaldehyde

    Explanation: 0.1 mol CH2O vs. 0.017 mol Ag2O. Ag2O is limiting (B assumes excess).