Neco Model Questions Vol1 2018 Chemistry Question 40

Practice objective / multiple choice question 40 from the 2018 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2018 Chemistry Objective / Multiple Choice Medium Difficulty
Question 40 NECO_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • objective

A 10.0\,g mixture of butane (C₄H₁₀) and propene (C₃H₆) is burnt completely. The combustion produces 31.2\,g of CO₂ and 13.4\,g of H₂O. Assuming only these two hydrocarbons are present, calculate the mass percentage of each component in the original mixture.

Answer Options

A. Butane ≈ 10\% , Propene ≈ 90\% by mass
B. Butane ≈ 50\% , Propene ≈ 50\% by mass
Correct Answer C. Butane ≈ 20\% , Propene ≈ 80\% by mass
D. Butane ≈ 30\% , Propene ≈ 70\% by mass
Correct Answer
C
Correct Option:
Butane ≈ 20\% , Propene ≈ 80\% by mass

About This Question

This is Neco Model Questions Vol1 2018 Chemistry Question 40. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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