Neco Model Questions Vol1 2019 Chemistry Question 29

Practice objective / multiple choice question 29 from the 2019 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2019 Chemistry Objective / Multiple Choice Medium Difficulty
Question 29 NECO_MODEL_QUESTIONS_VOL1 • 2019 • CHEMISTRY • objective

A 1.80 g sample of an unknown compound containing only C, H and O is combusted completely. The combustion yields 2.64 g of CO\(_2\) and 1.08 g of H\(_2\)O. Determine the empirical formula of the compound and, given that its molar mass is 180 g·mol⁻¹, state its molecular formula.

Answer Options

A. Empirical formula CH3O; molecular formula C6H18O6
Correct Answer B. Empirical formula CH2O; molecular formula C6H12O6
C. Empirical formula C2H4O; molecular formula C6H12O3
D. Empirical formula C3H6O; molecular formula C9H18O3
Correct Answer
B
Correct Option:
Empirical formula CH2O; molecular formula C6H12O6

About This Question

This is Neco Model Questions Vol1 2019 Chemistry Question 29. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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