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Table salt gets moist during rainy season because
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- sodium chloride is hygroscopic
- sodium chloride is deliquescent
- sodium chloride contains some quantity of sodium iodide
- sodium chloride contains hygroscopic impurities like magnesium chloride
- sodium chloride is hygroscopic
Correct Option: D
Table salt is refined salt, which contains about 97 to 99 percent sodium chloride. It usually contains substances that make it free-flowing (anticaking agents) such as sodium aluminosilicate or magnesium carbonate. Because of Hygroscopic nature of salt it become wet in rainy season as the salt absorbs moisture from environment.
