SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is a heterogeneous mixture?
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A water sample containing dissolved salt
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An air sample of oxygen, nitrogen, and carbon dioxide
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A glass jar containing sand and different sized rocks
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An iron-carbon alloy used to produce steel
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Explanation:
Detailed explanation-1: -Rock as a natural material is heterogeneous. Rock material consists of minerals, crystals, cement, grains, and microcracks.
Detailed explanation-2: -Answer and Explanation: Sand is made up of particles of silicon dioxide as the main part (in different sizes). It is a heterogeneous mixture. The properties, composition, and appearance of sand are not the same throughout the mixture.
Detailed explanation-3: -Concrete is a heterogeneous mixture of an aggregate: cement, and water. Sugar and sand form a heterogeneous mixture. Ice cubes in cola form a heterogeneous mixture. Salt and pepper form a heterogeneous mixture. Chocolate chip cookies are a heterogeneous mixture. More items •04-Feb-2020
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