SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of these is NOT a pure substance?
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elements
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compounds
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mixtures
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they are all pure substances
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Explanation:
Detailed explanation-1: -Sugar solution is a mixture and made up of different kinds of molecules. So it is not a pure substance.
Detailed explanation-2: -Aerated water is a homogeneous mixture of carbon dioxide and water. It is not a pure substance. Carbon dioxide is a compound while oxygen and zinc are elements which are a type of pure substance.
Detailed explanation-3: -A mixture is an impure substance. A mixture consists of molecules of two or more substances in any proportions such that they do not undergo any chemical change.
There is 1 question to complete.