Waec Model Questions Vol1 2022 Chemistry Question 35

Practice objective / multiple choice question 35 from the 2022 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2022 Chemistry Objective / Multiple Choice Hard Difficulty
Question 35 WAEC_MODEL_QUESTIONS_VOL1 • 2022 • CHEMISTRY • objective

Complete combustion of an unknown hydrocarbon produced 132.03 g of CO₂ and 63.05 g of H₂O. Assuming the hydrocarbon contains only carbon and hydrogen and is an alkane, determine (a) its molecular formula, (b) the mass of the original hydrocarbon sample, and (c) the number of possible structural isomers (including chain and branched) for that molecular formula. (Atomic masses: C = 12.011 g mol⁻¹, H = 1.008 g mol⁻¹).

Answer Options

Correct Answer A. C₆H₁₄; 43.1 g; 5 isomers
B. C₅H₁₂; 40.2 g; 3 isomers
C. C₇H₁₆; 58.1 g; 9 isomers
D. C₆H₁₄; 44.0 g; 6 isomers
Correct Answer
A
Correct Option:
C₆H₁₄; 43.1 g; 5 isomers

About This Question

This is Waec Model Questions Vol1 2022 Chemistry Question 35. It is one of the objective questions from the 2022 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

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