Tag: mixtures: examples and properties
Questions Related to mixtures: examples and properties
A _____ is a mixture of two or more substances in a single phase.
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Element
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Compound
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Solution
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None of above
A solution is a mixture of two or more substances in a single phase. At least two substances must be mixed in order to have a solution. Since solutions are mixtures, their compositions may vary over a very wide range. The concentrations may be expressed using a variety of measures.
Which of the following statement is incorrect about mixtures?
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A mixture contains two or more substances
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Particles in mixtures are of more than one kind
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Compounds or elements in a mixture is mixed in any proportion by mass
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None of the above
A mixture is a combination of two or more materials, compounds or elements where there is no chemical combination or reaction.
Statement (1): Mixture is a chemical combination of two or more elements.
Statement (2): Properties of the constituents of a mixture remain same.
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Statement I is true and Statement II is false
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Both statement I and II are true and II is not a correct explanation of statement I
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Both statement I and II are false
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Statement I is false and Statement II is true
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Both statement I and II are true and II is a correct explanation of statement I
The mixture is a combination of two or more elements in such a way that no chemical reaction occurs. So, a mixture is a physical combination of two or more elements.
Choose the correct statement from the following.
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Liquor ammonia and soda water are examples of liquid-gas type mixtures.
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Mixture of coconut oil and water can be separated using separating funnel.
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A mixture of iodine and sulphur can be separated using magnetic separation.
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A mixture of sand and sawdust can be separated using solvent extraction.
Liquor ammonia is a concentrated solution of ammonia in water due to which, it forms a liquid-gas mixture with soda water(carbon dioxide gas under pressure)
What type of mixture is steel?
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Solid-liquid heterogeneous mixture
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Solid-solid heterogeneous mixture
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Solid-solid homogeneous mixture
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Pure substance
Steel is alloy of iron and carbon, so it is forming a solid - solid homogeneous mixture.
Mixture can be separated, and kind of separation method depends on kind of:
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mixure it is
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solution it is
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molecule it is
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compound it is
In chemistry, a mixture is a material system made up of two or more different substances which are mixed but are not combined chemically. A mixture refers to the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions, and colloids.
The individual substances in a mixture can be separated using different methods, depending on the type of mixture. These methods include filtration, evaporation, distillation and chromatography.
A substance formed when two or more elements are mixed together without chemical reaction is known as:
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atom
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mixure
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molecule
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compound
In chemistry, a mixture is a material system made up of two or more different substances which are mixed but are not combined chemically. A mixture refers to the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions, and colloids.
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increase of pressure will favour the dissolution of gas in liquid
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increase of pressure will not favour the dissolution of gas in liquid
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increase of pressure has no affect on the dissolution of gas in liquid
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increase of temperature will favour the dissolution of gas in liquid
We need to separate different components of the mixture:
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to obtain pure substance
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to separate components for further uses
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to remove the impurities
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all of these
Separation of a mixture is done in order to:-
Two immiscible liquids can be separated by using:
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evaporation disc
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separating funnel
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filter funnel
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can not be separated