GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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contains only one element.
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varies in chemical compostion depending on the sample size
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has a definite composition the elements that the compound contains.
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can be classified as either heterogenous or homogenous.
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Detailed explanation-1: -A compound contains atoms of different elements chemically combined together in a fixed ratio. A mixture is a combination of two or more substances where there is no chemical combination or reaction. Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds.
Detailed explanation-2: -Compound:a substance that is made up of more than one type of atom bonded together. Mixture: a combination of two or more elements or compounds which have not reacted to bond together; each part in the mixture retains its own properties.
Detailed explanation-3: -The Law of Definite Composition: In different samples of any pure compound, elements combine always in the same, fixed, proportions by mass. compound has some definite mass composition].
Detailed explanation-4: -Elements are pure substances which are composed of only one type of atom. Compound are substances which are formed by two or more different types of elements that are united chemically in fixed proportions.