Question

why is calcium preferred over sodium to remove last traces of moisture from alcohol?

Answer 1

Calcium is preferred over sodium to remove last traces of moisture from alcohol because calcium is normally hygroscopic therefore it is able to absorb traces of the moisture .

Sodium is normally deliquescent hence it is unable to remove the moisture very effectively.

Therefore due to this, calcium is preferred over sodium in the removal of the moisture.

Answer 2

Answer:

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Both sodium and calcium react with water forming their respective hydroxides. In contrast, sodium reacts with alcohol to form sodium alkoxide but Ca does not.Read more on Sarthaks.com - https://www.sarthaks.com/385430/why-is-calcium-preferred-over-sodium-to-remove-last-traces-of-moisture-from-alcohol

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