Pure sodium chloride is not hydroscopic but common salt gets wet in ra

1.	Pure sodium chloride is not hydroscopic but common salt gets wet in rainy season ? Why so ?
Answer» Solution :PURE `NaCl` is not hygroscopic but table salt is impure NaCl containing impurities of `MgSO_(4) , CaSO_(4) , MgCl_(2) and CaCl_(2)` , all of these being hygroscopic absorb MOISTURE from air in rainy season . As a result , table salts gets wet .

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