SSC
CHEMISTRY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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sublimation
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deposition
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condensation
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evaporation
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Detailed explanation-1: -Sublimation is a type of phase change that takes place when a solid turns directly into a gas, skipping the liquid phase. The opposite of sublimation is vapour deposition. The term “sublimation” only applies to a physical change of state and not to the transformation of a solid into a gas during a chemical reaction.
Detailed explanation-2: -The direct conversion of a solid to a gas, without an intervening liquid phase, is called sublimation.
Detailed explanation-3: -Sublimation is the change of state from a solid to a gas, without passing through the liquid state. Deposition is the change of state from a gas to a solid. Carbon dioxide is an example of a material that easily undergoes sublimation. The melting point is the temperature at which a solid changes into a liquid.
Detailed explanation-4: -Five substances that undergo sublimation are: ammonium chloride, iodine, camphor, naphthalene, dry ice.