Waec Model Questions Vol1 2021 Chemistry Question 19

Practice objective / multiple choice question 19 from the 2021 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2021 Chemistry Objective / Multiple Choice Medium Difficulty
Question 19 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • objective

When 1.00 mol of an unknown alkane CₙH₂ₙ₊₂ is completely combusted, 2210 kJ of heat is released. The heat of combustion of ethane (C₂H₆) is 1560 kJ mol⁻¹. Assuming the heat released per -CH₂- group is the same for all alkanes, determine the molecular formula of the unknown alkane.

Answer Options

A. C5H12
B. C4H10
C. C2H6
Correct Answer D. C3H8
Correct Answer
D
Correct Option:
C3H8

About This Question

This is Waec Model Questions Vol1 2021 Chemistry Question 19. It is a objective / multiple choice question from the 2021 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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