Biology, asked by nikita72053, 1 month ago

5. Which of the following can be observed when a chemical reaction takes place?
(a) Change in state
(b) Change in colour
(c) Evolution of gas
(d) All of these

Answers

Answered by ItzCuteManjeet

1

Answer:

all of these ix the correct answer

Answered by krishna397356

0

According to me a and b

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