Question

Take a spoonful of sugar and heat it in a gas burner Record the observation
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Answer 1

Answer:

The colour of the sugar changes. A black residue is obtained at the bottom of the boiling tube. There is water vapir at the sides of the boiling tube.

Explanation:

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Answer 2

The observations are:

1. The sugar melts.
2. Sugar turns into a black coloured substance.
3. Water droplets may appear on the spoon.

Explanation:

• The chemical formula of sugar is C₁₂H₂₂O₁₁.
• Burning of sugar - C₁₂H₂₂O₁₁ → CO₂ + H₂O.
• Burning of sugar produces a black coloured substance.
• Water may appear according to the given reaction.

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