SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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TRUE
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FALSE
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Either A or B
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None of the above
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Detailed explanation-1: -Compounds are substances composed of two or more elements chemically combined that can be separated into simpler substances only by chemical means. Water, for example, is a compound because pure water is composed of only H2O molecules.
Detailed explanation-2: -Mixtures can be separated into their components by chemical or physical means. The properties of a mixture are similar to the properties of its components. Mixtures can be non-uniform (called heterogeneous). Mixtures can also be uniform (called homogeneous) and are known as solutions.
Detailed explanation-3: -Separating a compound requires a chemical reaction. The properties of a compound are usually different than the properties of the elements it contains. Salt (NaCl) M Bronze solutions. Mixtures can also be non-uniform (called heterogeneous).