WAEC Chemistry 2018 Objective — Question 22

Question 22 of 50 from the West African Examinations Council (WAEC) Chemistry 2018 Objective paper, with the correct answer and a full explanation.

The most suitable substance for putting out petrol fire is

A. water
B. carbon (IV) oxideCorrect
C. fire blanket
D. sand

Explanation

Carbon (IV) oxide (CO₂) is the most suitable extinguishing agent for petrol fires as it smothers the flame without spreading burning fuel (unlike water).

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