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Question

Which of the following is true regarding preparation of aldehydes and ketones ?
(i) Both can be prepared by the oxidation of the concerned alcohol with copper at about 250C
(ii) Both can be prepared by the oxidation of the concerned alcohol by oppenauer oxidation.
(iii) Both can be prepared by the oxidation of respective alcohol with acidic dichromate.


A

(i)

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B

(ii) and (iii)

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C

(i) and (iii)

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D

All the three

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Solution

The correct option is A

(i)


Primary alcohols on oxidation give carboxylic acids as the final product, of course through aldehydes. Oppenauer oxidation involves oxidation of 2 alcohols to ketones, and not for the oxidation of 1 alcohols.


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