Question
Which of the following is not an example of a physical change?
Answer: Option B
:
B
The burning of wood is not a physical change because new substances like carbon dioxide and water vapour are formed along with heat and light.In the other cases like cutting of wood, breaking of glass and melting of gold, no new substance is formed. Hence, these are the physical changes.
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:
B
The burning of wood is not a physical change because new substances like carbon dioxide and water vapour are formed along with heat and light.In the other cases like cutting of wood, breaking of glass and melting of gold, no new substance is formed. Hence, these are the physical changes.
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