GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which words do NOT describe a chemical change?
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sublimation
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Bubbles, production of gas
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Color change
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Evaporate
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precipitate
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Explanation:
Detailed explanation-1: -Explanation: When a liquid evaporates, the chemical makeup of the substance has not been altered. The only change is a change of phase caused by temperature and pressure. Therefore, evaporation, the phase change from liquid to gas, is a physical change.
Detailed explanation-2: -The different types of chemical reactions are combination, decomposition, single displacement, double displacement, reduction and oxidation reactions (redox reactions). Corrosion is not a type of chemical reaction.
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