25 cm³ of a hydrocarbon reacts with 125 cm³ O₂. After reaction, 75 cm³ CO₂ is produced. What is the hydrocarbon?
Q1. 25 cm³ of a hydrocarbon reacts with 125 cm³ O₂. After reaction, 75 cm³ CO₂ is produced. What is the hydrocarbon?
Answer: C₃H₆
Explanation: Volume ratio 1:5 O₂ to 3 CO₂. Balanced equation: 2C₃H₆ + 9O₂ → 6CO₂ + 6H₂O. Distractor C uses wrong CO₂ ratio.