Waec Model Questions Vol1 2018 Chemistry Question 35

Practice objective / multiple choice question 35 from the 2018 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2018 Chemistry Objective / Multiple Choice Medium Difficulty
Question 35 WAEC_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • objective

A 10.0 g sample of an unknown compound containing C, H, N and O is combusted. The combustion yields 22.0 g of CO₂ and 9.0 g of H₂O. The original sample contains 1.40 g of nitrogen. If the molecular mass of the compound is about 200 g mol⁻¹, determine its molecular formula.

Answer Options

Correct Answer A. C10H20N2O2
B. C10H22N2O2
C. C9H20N2O3
D. C10H20N3O2
Correct Answer
A
Correct Option:
C10H20N2O2

About This Question

This is Waec Model Questions Vol1 2018 Chemistry Question 35. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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