Question
Which of the following changes indicate that a chemical change has not been taken place?
Answer: Option A
:
A
A chemical change is a permanent change in which new substances are formed that are entirely different from the original substance.
It is usually accompanied by:
∙ change in colour
∙ formation of new substances
∙ evolution of gas
∙ release or absorption of energy in the form of heat or light or sound, etc.
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:
A
A chemical change is a permanent change in which new substances are formed that are entirely different from the original substance.
It is usually accompanied by:
∙ change in colour
∙ formation of new substances
∙ evolution of gas
∙ release or absorption of energy in the form of heat or light or sound, etc.
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