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Which of the following solvents is used for separation of mixture of sand and sulphur?
(A)Water
(B)Benzene
(C)Carbon disulphide
(D)Ethyl alcohol

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Last updated date: 29th Feb 2024
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IVSAT 2024
Answer
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Hint: A mixture generally contains two or more substances which are not combined chemically. We can easily separate the components of a mixture. There are two types of mixtures: heterogeneous mixtures and homogeneous mixtures.

Complete answer:The separation of the mixture of sand and sulphur is generally carried out by using an organic solvent carbon disulphide. Sulphur is soluble in this organic solvent whereas sand cannot be dissolved in carbon disulphide. So, sand can be filtered out and then the remaining solution is exposed to the atmosphere. The carbon disulphide will evaporate leaving behind sulphur. In this way, we can separate sand and sulphur from a mixture.
Therefore, option C is the correct answer.

Additional information: A mixture contains two or more types of matter which are present in varying amounts. They can be physically separated by using some methods which depend on physical properties to separate the components of the given mixture. Examples of such methods are evaporation, distillation, chromatography and filtration. The techniques which are used to separate two different states of matter such as solid and liquid are called separation techniques.

Note:
If salt is present in a mixture, we can separate it from the mixture by simply dissolving the mixture in water. As salt is soluble in water, it will get separated from the mixture. If iron filings are present in any mixture, they can be separated with the help of magnets. This is because iron gets attracted to magnets.
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