Waec Model Questions Vol1 2021 Chemistry Question 34

Practice objective / multiple choice question 34 from the 2021 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2021 Chemistry Objective / Multiple Choice Medium Difficulty

Question 34 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • objective

How many distinct structural isomers (ignoring stereochemistry) of molecular formula C₅H₈O contain both a carbonyl group (C=O) and a carbon-carbon double bond, and what is the mass percent of carbon in this compound?

Answer Options

A. 15 isomers; mass percent C = 68.2 %

B. 19 isomers; mass percent C = 73.5 %

Correct Answer C. 17 isomers; mass percent C = 71.4 %

D. 12 isomers; mass percent C = 66.7 %

Correct Answer

Correct Option:

17 isomers; mass percent C = 71.4 %

About This Question

This is Waec Model Questions Vol1 2021 Chemistry Question 34. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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