what is hygroscopic?
Kindly refer to the following link:
https://www.meritnation.com/ask-answer/question/what-is-meant-by-hygroscopic-and-why-ethanol-is-highly-hygro/chemistry/7795721
https://www.meritnation.com/ask-answer/question/what-is-meant-by-hygroscopic-and-why-ethanol-is-highly-hygro/chemistry/7795721