Burning of a candle is:

a physical change

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a chemical change

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a physical and a chemical change

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biological change

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Solution

The correct options are
A
a physical change

B
a chemical change

Burning of candle is both physical and chemical change. When we burn a candle, the wax melts and hence the physical state of wax changes from solid to liquid. As the wax burns to produce flame, it combines with the atmospheric oxygen and changes to carbon dioxide, heat and light. Thus, both types of changes occur when we burn a candle.

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Similar questions

Q. Is burning of a substance always a chemical change? Explain how burning of candle involves both physical and chemical change.

Is burning a candle is a chemical or physical change or both

Burning of candle is accompanied by both physical and chemical change. Explain the physical and chemical change involved.

Burning of a candle is a chemical as well as physical change, why?

1. The physical change occurs when the wax of candle melts and it loses its shape
2. The chemical change is combustion of fuel in presence of oxygen. This leads to the production and emission of carbon dioxide from the flame
3. The burning of a candle is only a chemical change
4. The burning of a candle is only a physical change

Give reason:

(a)Freezing of water to ice and evaporation of water are physical changes.

(b)Burning of a candle is both a physical and a chemical change.

(c)Burning of paper is a chemical change.

(d)Cutting of a cloth piece is a physical change, though it cannot be reversed.

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