Gce Model Questions Vol1 2025 Chemistry Question 5

Practice objective / multiple choice question 5 from the 2025 Gce Model Questions Vol1 Chemistry examination.

Gce Model Questions Vol1 2025 Chemistry Objective / Multiple Choice Hard Difficulty

Question 5 GCE_MODEL_QUESTIONS_VOL1 • 2025 • CHEMISTRY • objective

A 2.00 g sample of an unknown hydrocarbon is combusted completely in excess oxygen, producing 5.60 g of carbon dioxide and 2.24 g of water. (a) Determine the empirical formula of the hydrocarbon. (b) Given that its molar mass is 56 g mol⁻¹, deduce its molecular formula.

Answer Options

A. Molecular formula C₃H₆

B. Molecular formula C₄H₁₀

Correct Answer C. Molecular formula C₄H₈

D. Molecular formula C₅H₁₀

Correct Answer

Correct Option:

Molecular formula C₄H₈

About This Question

This is Gce Model Questions Vol1 2025 Chemistry Question 5. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

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Gce Model Questions Vol1 2025 Chemistry Question 5

A 2.00 g sample of an unknown hydrocarbon is combusted completely in excess oxygen, producing 5.60 g of carbon dioxide and 2.24 g of water. (a) Determine the empirical formula of the hydrocarbon. (b) Given that its molar mass is 56 g mol⁻¹, deduce its molecular formula.

Answer Options

About This Question

Master the Exam!

A 2.00 g sample of an unknown hydrocarbon is combusted completely in excess oxygen, producing 5.60 g of carbon dioxide and 2.24 g of water. (a) Determine the empirical formula of the hydrocarbon. (b) Given that its molar mass is 56 g mol⁻¹, deduce its molecular formula.