SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a combination of elements to make a new substance
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a chemically combined substance
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a combination of substances where new substances are formed through a reaction
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a combination of substances in which the atoms of the substance do not chemically combine
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Detailed explanation-1: -A mixture is made when two or more substances are combined, but they are not combined chemically. There are two main categories of mixtures: homogeneous mixtures and heterogeneous mixtures. In a homogenous mixture all the substances are evenly distributed throughout the mixture (salt water, air, blood).
Detailed explanation-2: -A mixture forms when substances combine in any proportions without a chemical reaction.
Detailed explanation-3: -According to the definition of compounds, two or more elements combine together chemical to form a new substance called compound. Compounds are commonly termed as chemical compounds.
Detailed explanation-4: -A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs. A mixture can usually be separated back into its original components. Some examples of mixtures are a tossed salad, salt water and a mixed bag of M&M’s candy.