What is the primary hazard associated with most flammable liquids?

• A. They emit toxic fumes under normal conditions.
• B. They react violently with water.
• C. They can easily ignite and cause fires.
• D. They are highly corrosive to metals.

Answer: (C)

Verified step by step guidance

1. Understand the nature of flammable liquids: these substances have low flash points, meaning they can vaporize easily at normal temperatures and form ignitable mixtures with air.
2. Recognize that the primary hazard of flammable liquids is their ability to catch fire easily when exposed to an ignition source, such as a spark or open flame.
3. Note that while some flammable liquids might emit fumes, the toxicity of these fumes is not the main hazard under normal conditions; the risk of fire is more immediate and dangerous.
4. Consider that most flammable liquids do not react violently with water; in fact, water is often used to extinguish fires involving some flammable liquids, although not all (e.g., oil fires).
5. Understand that flammable liquids are generally not highly corrosive to metals, so corrosion is not their primary hazard.