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Perform an activity to distinguish between combustible and non combustible

Posted by Rajeswari Ponnapalli 6 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 10 months ago

The substances which undergo combustion are called combustible substances.

When a magnesium ribbon burns, it combines with oxygen of air to form magnesium oxide, and liberates heat and light. During this process of combustion, magnesium is a combustible substance.

If we hold a piece of charcoal with a pair of tongs and heat it on the flame of a burner, it starts burning to form carbon dioxide. In this process a lot of heat is produced but only a little light is produced.

In both the examples oxygen is necessary for combustion to take place. Air is the supporter of combustion because it contains oxygen.

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