CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following reagents can be used to oxidise primary alcohols to aldehydes?
(a) CrO3 in anhydrous medium
(b) KMnO4 in acidic medium
(c) Pyridinium chlorochromate
(d) Heat in the presence of Cu at 573K

Open in App
Solution

CrO3 in anhydrous medium is used to oxidise primary alcohols to aldehydes.
RCH2OHCrO3(anhydrous)−−−−−−−−−−RCHO
Acidic KMnO4 is a very strong oxidising agent. It oxidises primary alcohols into carboxylic acid.
RCH2OHKMnO4−−−−RCOOH
Pyridinium chlorochromate (C6H5+NHClCrO3) is a very good reagent for the oxidation of primary alcohols to aldehydes.
RCH2OHPCC−−RCHO
When the vapours of primary alcohols are passed over heated copper at 573 K, dehydrogenation takes place and an aldehyde is formed.
RCH2OHCu−−573 KRCHO


flag
Suggest Corrections
thumbs-up
4
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Chemical Properties of Alcohols 1
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon