Which is the most suitable method for removing the traces of water from ethanol ?

Options

A. Heating with Na metal
B. Passing dry HCl gas through it
C. Distilling it
D. Reacting with Mg

Answer

D

Explanation

`"Mg"+2C_(2)H_(5)OHto"Mg"("OC"_(2)"H"_(5))_(2)+H_(2)`
`"Mg"("OC"_(2)"H"_(5))_(2)+2"H"_(2)"O"to"Mg"("OH")_(2)+2C_(2)H_(5)OH`
Magnesium mainly used for removing trace of water from alcohols, which are distilled from it after refulxing.