1-propanol and 2-propanol can be best distinguished by :

Options

A. Oxidation with alkaline `KMnO_(4)` followed by reaction with Fehling solution
B. Oxidation with alkaline dichromate followed by reaction with Fehling solution
C. Oxidation by heating with copper followed by reaction with Fehling solution
D. Oxidation with concentrated `H_(2)SO_(4)` followed by reaction with Fehling solution

Answer

C

Explanation

Although propanol-1 and propanol-2 can be easily distinguished using the iodoform test, there can be other techniques to affect the distinction of the two types of alcohols as is shown below:
`CH_(3)-underset("1-propanol")(CH_(2))-CH_(2)OH underset(Delta300^(@)C)overset(Cu)rarrCH_(3)-CH_(2)-CHOunderset("Fehling solution")overset(2CuO)rarr underset("red ppt.")(Cu_(2)O darr)+CH_(3)CH_(2)-COOH`
`CH_(3)underset("2-propanol")underset(OH)underset(|)(CH)-CH_(3)underset(Delta,300^(@)C)overset(Cu)rarrCH_(3)-CO-CJ_(3)underset(
"Fehling solution")overset(2CuO)rarr` No reaction