Which one of the following reagents can not be used to oxidise primary alcohols to aldehydes ?

C r O_{3}

in anhydrous medium

No worries! We‘ve got your back. Try BYJU‘S free classes today!

K M n O_{4}

in acidic medium

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Pyridinium chlorochromate

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Heat in presence of Cu at 573K

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D $K M n O_{4}$ in acidic medium
$K M n O_{4}$ will oxidize initially formed aldehydes to carboxylic acids. Remaining all the three reagents can be used to oxidize primary alcohols to aldehydes.

Suggest Corrections

Similar questions

Which of the following reagents can be used to oxidise primary alcohols to aldehydes?
(a) $C r O_{3}$ in anhydrous medium
(b) $K M n O_{4}$ in acidic medium
(c) Pyridinium chlorochromate
(d) Heat in the presence of Cu at 573K

Q. Which of the following reagent cannot be used to oxidize primary alcohols to aldehydes?

Q. Addition of alcohol to aldehydes in presence of anhydrous acid yield:

Q. Assertion (A):

C H_{3} C H_{2} O H

can be converted into

C H_{3} C H O

by treatment with pyridinium chlorochromate.

Reason (R): PCC is a better reagent for oxidation of primary alcohols to aldehydes.
[1 Mark]

Q. Statement- I: Primary alcohols can be easily oxidised to aldehydes.
Statement- II: Aldehydes are prone to further oxidation to carboxylic acids.

Join BYJU'S Learning Program

Which one of the following reagents can not be used to oxidise primary alcohols to aldehydes ?

The correct option is D KMnO4 in acidic mediumKMnO4 will oxidize initially formed aldehydes to carboxylic acids. Remaining all the three reagents can be used to oxidize primary alcohols to aldehydes.

The correct option is D $K M n O_{4}$ in acidic medium
$K M n O_{4}$ will oxidize initially formed aldehydes to carboxylic acids. Remaining all the three reagents can be used to oxidize primary alcohols to aldehydes.