SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is not evidence that a chemical reaction has occurred?
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Sound is given off
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Gas bubbles escape
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The shape of the object changes
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The temperature changes
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Explanation:
Detailed explanation-1: -Chemical reactions can be identified via a wide range of different observable factors including change in color, energy change (temperature change or light produced), gas production, formation of precipitate and change in properties.
Detailed explanation-2: -Chemical reactions can be identified via a wide range of different observable factors including change in color, energy change (temperature change or light produced), gas production, something burning, and the formation of a precipitate.
There is 1 question to complete.