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Reverse process of sublimation is:
a.Fusion
b.Condensation
c.Deposition
d.Freezing

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Last updated date: 13th Jun 2024
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Answer
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Hint: A state of matter is one of the distinct forms that matter can occur in. In daily life four states of matter are observable: solid, liquid, gas, and plasma. Too much will matter to pass from one state to another. This is defined as the states of matter being interconverted. Matter will change from one state to another when certain physical conditions change – i.e., the substance's temperature and pressure.

Complete answer:
Condensation is the transition in the physical state of matter from the phase of gas to the phase of liquid which is the opposite of evaporation. Fusion is the mechanism that powers the stars and the sun. It is the reaction in which two hydrogen atoms join, or fuse together, to create a helium atom. Any of the hydrogen mass is converted into energy in the process.
Freezing is a phase transition where a liquid transforms into a solid as it decreases its temperature below its freezing point.
If water vapour goes straight from gas to solid. The so-called deposition processes. The reverse phase, sublimation, comes when a solid directly transitions to a gas.

Therefore, the correct answer is option (c) Deposition

Note: Some solids, bypassing the liquid state, can transition directly into the gaseous state through a process called sublimation. A bit of solid (solid $C{{O}_{2}}$) sublimes at temperature and normal atmosphere, appearing to gradually dissolve without ever becoming any liquid. Snow and ice are exquisite at temperatures below the freezing point of water, a slow process that is speeded up by winds and therefore the air pressure at high altitudes is decreased.