Which one of the following is chemical change?

Heating of glass until softens

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Disappearance of solid carbon dioxide in air

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Explosion of dynamite

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Dissolving of sugar in water

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Solution

The correct option is B Explosion of dynamite
Dynamite explodes and produces heat and light. It is a chemical change.

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Similar questions

Which one chemical reaction occurs during photosynthesis ?

(a) Carbon dioxide is reduced and water is oxidised.

(b) Water is reduced and carbon dioxide is oxidised.

(d) Both carbon dioxide and water are reduced.

Balance the following chemical equation

Calcium hydroxide + carbon dioxide -calcium carbonate + water

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