KCET2017ChemistryChemistry in Everyday Life
Which of the following reagent cannot be usedto oxidize primary alcohols to aldehydes?
Options
- A( CrO ₃ ) in anhydrous medium
- B( KMnO ₄ ) in acidic medium
- CPyridinium chloro chromate
- DHeating in presence of ( Cu ) at ( 573 ~K )
Correct answer
B. ( KMnO ₄ ) in acidic medium
Step-by-step solution
Acidified ( KM nO ₄ ) will not be used to oxidized primary alcohols to corresponding aldehydes, because oxidation of primary alcohols does not stop at aldehydes and give carboxylic acids.