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Primary alcohols on dehydrogenation give...

Primary alcohols on dehydrogenation give aldehydes.

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A : Primary alcohols on oxidation give aldehydes. R : Aldehydes can be oxidized into the corresponding carboxylic acids.

From Primary Alcohols And Aldehydes

Primary amine and aldehyde react to give

Assertion : It is not so easy to oxidise primary alcohols to aldehydic stage. Reason : Aldehydes are prone to furthr oxidation to carbonxylic acids.

Read the passage given below and answer the following questions: Aldehydes, ketones and carboxylic acids are few of the major classes of organic compounds containing carbonyl group. Aldehydes are prepared by dehydrogenation or controlled oxidation of primary alcohols and controlled or selective reduction of acyl halides. Ketones are prepared by oxidation of secondary alcohols and hydration of alkynes. Carboxylic acids are prepared by the oxidation of primary alcohols, aldehydes and alkenes by hydrolysis of nitriles and by treatment of Grignard reagents with carbon dioxide. Through which of the following reactions number of carbon atoms can be increased in the chain?