SSC
CHEMISTRY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Always True
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Sometimes True
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Never True
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None of the above
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Detailed explanation-1: -A phase is any part of a sample that has a uniform composition and properties. By definition, a pure substance or a homogeneous mixture consists of a single phase. A heterogeneous mixture consists of two or more phases. When oil and water are combined, they do not mix evenly, but instead form two separate layers.
Detailed explanation-2: -A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. Heterogeneous mixtures consists of visibly different substances or phases.
Detailed explanation-3: -Matter that has a uniform and definite composition is called a substance. • Aluminum and copper are examples of. substances, which are also referred to as pure substances.