KCET · Chemistry · Chemistry in Everyday Life
Which of the following reagent cannot be usedto oxidize primary alcohols to aldehydes?
- A \( \mathrm{CrO}_{3} \) in anhydrous medium
- B \( \mathrm{KMnO}_{4} \) in acidic medium
- C Pyridinium chloro chromate
- D Heating in presence of \( \mathrm{Cu} \) at \( 573 \mathrm{~K} \)
Answer & Solution
Correct Answer
(B) \( \mathrm{KMnO}_{4} \) in acidic medium
Step-by-step Solution
Detailed explanation
Acidified \( \mathrm{KM} \mathrm{nO}_{4} \) 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.
primary alcohols does not stop at aldehydes and give carboxylic acids.
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