Waec Model Questions Vol1 2025 Chemistry Question 20

Practice objective / multiple choice question 20 from the 2025 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2025 Chemistry Objective / Multiple Choice Medium Difficulty
Question 20 WAEC_MODEL_QUESTIONS_VOL1 • 2025 • CHEMISTRY • objective

A compound contains 40.0 % C, 6.7 % H and 53.3 % O by mass and has a molar mass of 180 g mol⁻¹. Determine its molecular formula and the number of moles present in a 45.0 g sample.

Answer Options

A. C6H12O6; 0.30 mol
B. C5H10O5; 0.25 mol
Correct Answer C. C6H12O6; 0.25 mol
D. C7H14O7; 0.25 mol
Correct Answer
C
Correct Option:
C6H12O6; 0.25 mol

About This Question

This is Waec Model Questions Vol1 2025 Chemistry Question 20. It is one of the objective questions from the 2025 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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