Flammable

The video tutorial explains the concept of flammability, describing it as the ability of materials to catch fire easily. It categorizes flammable materials into solids, liquids, and gases, providing examples such as wood, alkali metals like lithium and sodium, ethanol, and hydrogen.

What characteristic defines a material as flammable?

• It is non-reactive.

• It is easily ignited.

• It is cold to touch.

• It is heavy.

Which of the following is an example of a flammable solid?

• Iron

• Wood

• Water

• Glass

Which alkali metal is known for being highly flammable?

• Gold

• Copper

• Lithium

• Silver

Which of the following is a flammable liquid?

• Ethanol

• Mercury

• Vinegar

• Water

Hydrogen is an example of a flammable:

• Metal

• Solid

• Liquid

• Gas