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The phenomenon in which white transparent crystal changes into white powder is called

(a) Deliquescence
(b) Efflorescence
(c) Allotrophy
(d) Sublimation
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  • In chemistry, efflorescence is the loss of water (or a solvent) of crystallization from a hydrated or solvated salt to the atmosphere on exposure to air.
 
Answer: Efflorescence
Efflorescence is a phenomenon in which white transparent crystal changes into a white powder. Efflorescences can occur in natural and built environments. On porous construction materials it may present a cosmetic problem only, but can sometimes indicate serious structural weakness.
answered Jan 26, 2014 by mosymeow_1
edited Jan 29, 2014 by mosymeow_1
 

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