SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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sea water
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oil in water
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alcohol in water
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carbonated drink
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Detailed explanation-1: -Mixutre of salt and water is a solution while that of oil and water is not .
Detailed explanation-2: -Since oil is not soluble in water, it will never truly dissolve. Oil and water is a mixture, not a solution. The two types of molecules (oil and water) are not evenly distributed in the system.
Detailed explanation-3: -Hydrogen (H2) is not soluble in water this is because hydrogen is a non-polar molecule whereas water is a polar molecule. There is a principle that ‘like dissolves like’ since hydrogen and water are two different types of substances, hence H2 is not soluble in water.
Detailed explanation-4: -In the given options air, smoke, and saltwater are considered as solutions, whereas a gold ring is not a solution. Option C is the correct one. Note: The solution is a homogeneous mixture.
Detailed explanation-5: -A mixture of oil and water is called an emulsion. An emulsion is defined as a mixture of two liquids which do not combine. When the liquids are stirred an emulsion occurs but after sometime the liquids separate into individual layers. We have seen that oil floats on water, when we stir it, an emulsion is formed.