Igcse Model Questions Vol1 2018 Chemistry Question 13

Practice objective / multiple choice question 13 from the 2018 Igcse Model Questions Vol1 Chemistry examination.

Igcse Model Questions Vol1 2018 Chemistry Objective / Multiple Choice Medium Difficulty
Question 13 IGCSE_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • objective

A 2.00 g sample of an unknown hydrocarbon is completely combusted in excess oxygen. The combustion produces 5.53 g of carbon dioxide and 2.24 g of water. (a) Determine the empirical formula of the hydrocarbon. (b) If the molar mass of the hydrocarbon is known to be 58 g·mol\(^{-1}\), deduce its molecular formula.

Answer Options

A. Empirical formula: CH₃; Molecular formula: C₃H₉
Correct Answer B. Empirical formula: CH₂; Molecular formula: C₄H₈
C. Empirical formula: C₃H₆; Molecular formula: C₉H₁₈
D. Empirical formula: C₂H₃; Molecular formula: C₆H₉
Correct Answer
B
Correct Option:
Empirical formula: CH₂; Molecular formula: C₄H₈

About This Question

This is Igcse Model Questions Vol1 2018 Chemistry Question 13. It is one of the objective questions from the 2018 Igcse Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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