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Standard VI
Chemistry
Question

Which one of the following is chemical change?
  1. Heating of glass until softens
  2. Explosion of dynamite
  3. Disappearance of solid carbon dioxide in air
  4. Dissolving of sugar in water

A
Heating of glass until softens
B
Dissolving of sugar in water
C
Disappearance of solid carbon dioxide in air
D
Explosion of dynamite
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Solution
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Dynamite explodes and produces heat and light. It is a chemical change.

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