1. When a new substance is formed after the change, it is called chemical change.
2. Chemical changes cannot be reversed by simple physical means.
3. Many chemical changes are irreversible.
4. Examples: Burning of candle, rusting of iron, etc.
The following are generally observed during a process. Which of the above can accompany a chemical change ?
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Right Option : D | |||
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If two substances are bought in contact . it will result in | |||
Right Option : C | |||
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Which one of the following is a chemical change ? | |||
Right Option : B | |||
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