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Byju's Answer
Standard VIII
Chemistry
Physical and Chemical Changes
Which observa...
Question

Which observation is definite sign that a chemical change has occurred?

A
Color change
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B
Bubble formation
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C
Change in temperature
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D
Precipitate formation
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E
Salt dissolving
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Solution

The correct option is B Color change

Chemical change involves chemical reactions and the creation of new products. Typically, a chemical change is irreversible.Change of color show chemical reaction.


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