SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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has varying properties
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has a fixed composition
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are not a pure substance
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None of the above
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Detailed explanation-1: -Mixtures do not have a chemical reaction, such as dissolving or burning.
Detailed explanation-2: -It is formed by the physical combination of two or more substances. Example-Air is a mixture containing various gases and dust particles. The components of air are just mixed with each other, not combining chemically.
Detailed explanation-3: -Characteristics of Mixtures They can either be heterogeneous or homogeneous in nature. The proportions of the substances vary in an indefinite manner. The properties of the mixture depend upon the individual components. The constituents of the mixture can be separated by physical methods.
Detailed explanation-4: -The composition of the mixture is variable it is not fixed. In a mixture the constituents particles do not lose their original identity that is mixture basically retains the characteristic of its constituents. Mixtures do not have a fixed melting and boiling point.