A student is given a mixture of naphthalene balls powder and common salt. He needs to separate this mixture. How will he do this?
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Answer:
The student will heat the solution and napathalene will get sublimated and common salt remains will be left
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How will you separate a mixture of naphthalene balls powder and common salt? Draw a neat and labelled diagram to show that process.
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Hint: Before going to the problem directly let us first get some idea about the mixture. A mixture is a substance composed of two or more distinct chemicals that are not chemically joined. A mixture is a physical mixing of two or more substances that retain their identities and are blended in the form of solutions, suspensions, or colloids.
Complete answer: The technique of extracting naphthalene from common salt is known as sublimation. Sublimation is the process of converting a solid into vapours without going through the liquid state. Sublimation is the process of a substance transitioning directly from a solid to a gas state without passing through a liquid stage. Sublimation is an endothermic process that occurs when a substance's triple point on its phase diagram, which corresponds to the lowest pressure at which the substance can exist as a liquid, is reached. Deposition or desublimation is the reversal of sublimation, in which a substance transitions from a gas to a solid state. The term "sublimation" has also been used to denote a solid-to-gas transition followed by a gas-to-solid transition.