Waec 2024 Chemistry Question 24

Practice objective / multiple choice question 24 from the 2024 Waec Chemistry examination.

Waec 2024 Chemistry Objective / Multiple Choice 2 Difficulty
Question 24 WAEC • 2024 • CHEMISTRY • objective

The percentage by mass of oxygen in \( \mathrm{MgSO}_{4} .7 \mathrm{H}_{2} \mathrm{O} \) is \( [\mathrm{Mr}=246] \).

Answer Options

A. 26.0 \%.
Correct Answer B. 45.5 \%.
C. 71.5 \%.
D. 84.0 \%.
Correct Answer
B
Correct Option:
45.5 \%.

About This Question

This is Waec 2024 Chemistry Question 24. It is one of the objective questions from the 2024 Waec Chemistry examination.

Difficulty level: 2 .

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