Which of the Following Are Combustion Reactions? 1) CH₄ (G)

question 164

Multiple Choice

Which of the following are combustion reactions? 1) CH₄ (g) + O₂ (g) → CO₂ (g) + H₂O (l)
2) CaO (s) + CO₂ (g) → CaCO₃ (s)
3) PbCO₃ (s) → PbO (s) + CO₂ (g)
4) CH₃OH (l) + O₂ (g) → CO₂ (g) + H₂O (l)

• A)1 and 4
• B)1, 2, 3, and 4
• C)1, 3, and 4
• D)2, 3, and 4
• E)3 and 4

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