Question: what are anhydrous and hydrated salts explain with examples?
Answer: In hydrated salts, the water molecule are adsorbed on the surface of the compound but in anhydrous molecules there is no water molecule adsorbed on the surface of the compound. e. g., CuSO4. 5H2O is hydrous copper sulphate which is blue in colour but CuSO4 is anhydrous copper sulphate which is white in colour.