Question
Which of the following is a chemical change?
Answer: Option C
:
C
When we light the wood up, it burns gently and after a while, it turns into ashes. As it burns, it produces heat, light and smoke which escapes through the chimney. The heat, light, fire and smoke are all good characteristics of a chemical change, which result in a completely new matter i.e. ashes.In the other options like cutting of wood, melting of ice and dissolving sugar in water, no new substances are formed. So, these are examples of physical changes.
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:
C
When we light the wood up, it burns gently and after a while, it turns into ashes. As it burns, it produces heat, light and smoke which escapes through the chimney. The heat, light, fire and smoke are all good characteristics of a chemical change, which result in a completely new matter i.e. ashes.In the other options like cutting of wood, melting of ice and dissolving sugar in water, no new substances are formed. So, these are examples of physical changes.
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