Which of the following is a chemical change?
(a) Bursting of a fire cracker
(b) Germination of seed
(c) Coal formation from buried trees
(d) All of these
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Answered by
1
Answer:
Chemical changes occur when a new substance is formed with different physical and chemical properties . All these changes cannot be reversed. Example: Trees cannot be formed by coal , plant cannot turned into seed again and fire cracker cannot be made by the remaining of fire crackers hence, all are chemical change.
Answered by
3
Answer:
The right answer will be option D
All of these are chemical change because in a chemical change new product is formed
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