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Questions and Answers
A substance that burns in air to produce heat and light is called a non-combustible substance.
A substance that burns in air to produce heat and light is called a non-combustible substance.
False
Stone, steel, and glass are examples of combustible substances.
Stone, steel, and glass are examples of combustible substances.
False
Combustion is a physical change.
Combustion is a physical change.
False
A blanket can help in extinguishing a fire by cutting off the supply of oxygen to the fire.
A blanket can help in extinguishing a fire by cutting off the supply of oxygen to the fire.
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Oxygen is one of the essential components required for combustion.
Oxygen is one of the essential components required for combustion.
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One of the materials required for the teacher's demonstration activity to test combustibility is water.
One of the materials required for the teacher's demonstration activity to test combustibility is water.
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