MDCAT Chemistry MCQ #4528

A hydrocarbon sample (4.4 g) produces 13.2 g CO₂ and 5.4 g H₂O. Calculate its empirical formula.

MDCAT Chemistry MCQ #4528

  1. Question 1

    Q1. A hydrocarbon sample (4.4 g) produces 13.2 g CO₂ and 5.4 g H₂O. Calculate its empirical formula.

    • A) CH₂
    • B) C₂H₄
    • C) C₃H₆
    • D) C₄H₁₀

    Answer: C₂H₄

    Explanation: Carbon: 13.2 g CO₂ → 3.6 g C. Hydrogen: 5.4 g H₂O → 0.6 g H. Ratio 3.6:0.6 = 6:1 → C₂H₄. Distractor A miscounts H.