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Question

The process by which a solid changes to gas without becoming a liquid is called.

A
Vaporisation
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B
Sublimation
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C
Boiling
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D
Absorption
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Solution

The correct option is B Sublimation
Solution: The change of the state of a substance directly from solid to gas is called sublimation. It can be considered as a endothermic reaction. The reverse of this process is called desublimation. It is a type of physical change.
Hence, the correct option is (B).

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