How will you convert ethanol to propanone ?

Explanation

`underset("Ethanol")(CH_(3)CH_(2)OH)overset((O))rarrunderset("Ethanoic acid")(CH_(3)COCH)overset(Ca(OH)_(2))rarrunderset("Cal.salt")(CH_(3)COO_(2)Ca)overset("heat")rarrunderset("Propanone")(CH_(3)COCH_(3))`