Taking sodium carbonate as an example give the meaning of the following terms
a) Anhydrous
b)Effloresence

Dear Student

1) Anhydrous means a salt without water. If there is no water of crystallization present in the salt then the salt is called as anhydrous.  
2) Efflorescence is the process in which a hydrated salt loes its water of crystallization when comes in contact with water. 



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