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Question

Which of these given options is/are properties of a chemical change?

A
Both physical and chemical properties are changed.
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B
New substances are formed.
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C
Both a and b.
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D
Neither a nor b.
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Solution

The correct option is C Both a and b.
A chemical reaction is characterized by:
Change in temperature
Change in colour
Change in state
Evolution of gas
Formation of precipitate
Formation of new substance

Both the properties mentioned above are seen in a chemical change. A chemical change is a type of change where the composition of the products formed is entirely different from that of the reactants.

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