Dry CO2 is passed through grignard reagent in the presence of either as a solvent. The intermediate is decomposed with diluted HCI giving a compound 'X' identity 'X'.
Correct answer: D. Carboxylic acid
- A. Primary alcohol
- B. Secondary alcohol
- C. Acetone
- D. Carboxylic acid
Explanation
When a Grignard reagent reacts with carbon dioxide, the reaction leads to the formation of a carboxylate salt as an intermediate. Upon acidification, typically with a dilute mineral acid like HCl, this intermediate is converted into a carboxylic acid. Therefore, the compound 'X' is a carboxylic acid.The other options are incorrect because: Primary alcohols are formed by the reaction of Grignard reagents with formaldehyde, secondary alcohols are formed with aldehydes other than formaldehyde, and acetone is a ketone that requires specific starting materials and conditions unrelated to the reaction with carbon dioxide.
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About Nomenclature, Structure and Preparation
Carboxylic acids are prepared by oxidising primary alcohols or aldehydes, hydrolysing nitriles, esters and amides, and carbonating suitable organometallic compounds. Their structures, IUPAC naming, resonance stabilisation and acidic character explain why carboxylic acids differ from alcohols and phenols, despite all containing oxygen and hydrogen.
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