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Which of the following is not an indicator of a chemical reaction?
- A Change of colour
- B Gas/Bubbles form
- C It becomes poisonous.
- D Creates heat/light
- E Scent changes
That's Correct!
It's Wrong!
The statement "It becomes poisonous" is not a direct indicator of a chemical reaction. While some chemical reactions can produce toxic substances, the toxicity itself is not an observable indicator. Common indicators of a chemical reaction include a change of color, the formation of gas or bubbles, the creation of heat or light, and a change in scent. These indicators reflect changes in the substance's properties during a reaction.