BIOCHEMISTRY
PROPERTIES OF WATER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A substance composed of two or more elements or compounds that are not chemically combined is called a:
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mixture
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element
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compound
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polar substance
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Explanation:
Detailed explanation-1: -The correct option is A. compound. Compounds are pure substances formed from two or more elements through a chemical combination. For example, NaCl is a compound.
Detailed explanation-2: -A mixture is a material system made up of two or more different substances, which are mixed but not combined chemically.
Detailed explanation-3: -The examples of combinations of substances that are not combined chemically are Mixtures and solutions.
Detailed explanation-4: -A compound is a substance composed of two or more different types of elements chemically combined in a fixed proportion.
Detailed explanation-5: -A compound is a substance composed of two or more elements, chemically combined in a fixed proportion.
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