Question:
$ n- $ propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent :-
$ n- $ propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent :-
Updated On: May 4, 2024
- $PCl_5$
- reduction
- oxidation with potassium dichromate
- ozonolysis
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The Correct Option is C
Solution and Explanation
$n-$ propyl alcohol and isopropyl alcohol gives different product on oxidation with $K_{2}Cr_{2}O_{7}$.
$\underset{\text{n-propyl alcohol}}{CH _{3}- CH _{2}}- CH _{2} OH$
${ ->[{[O]}][{K_2Cr_2O_7/H_2SO_4}]}\underset{\text { propionaldehyde }}{ CH _{3}- CH _{2}- CHO }$
${ ->[{[O]}][{K_2Cr_2O_7/H_2SO_4}]}$
$\underset{\text{n-propyl alcohol}}{CH _{3}- CH _{2}}- CH _{2} OH$
${ ->[{[O]}][{K_2Cr_2O_7/H_2SO_4}]}\underset{\text { propionaldehyde }}{ CH _{3}- CH _{2}- CHO }$
${ ->[{[O]}][{K_2Cr_2O_7/H_2SO_4}]}$
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Concepts Used:
Alcohols
What is Alcohol?
Alcohol is a derivative of water (H2O) that has one, two, or more hydroxyl groups that are attached to a carbon atom of a hydrocarbon chain (an alkyl group). It is one of the most common organic compounds used in sweeteners, fragrances, and medicine.
Read More: Types of Alcohol
Uses of Alcohol:
- Ethanol is the alcohol used in alcoholic drinks. It can be used as an industrial methylated spirit where methanol is used very little in quantity as it can be dangerous.
- It is used as fuel to produce carbon dioxide and water by the process of fermentation. Whereas methanol burns carbon dioxide and water to facilitate combustion.
- Alcohol is an organic compound used as a solvent that is insoluble in water.
- It can be used to lower the level of sugar.
- Alcohol is used as a preservative in laboratories.