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NEET levelSingle correct optionDifficulty 1 of 3hx169

$CH X_{3} MgBr$ is poured over solid carbon dioxide (dry ice) and the product is hydrolysed with dilute $H X_{2} SO X_{4}$ . The organic product is

Aethanal
Bethanoic acid (acetic acid)
Cpropanoic acid
Dethanol

Answer: B

CH X_{3} MgBr

adds to

CO X_{2}

to give

CH X_{3} COOMgBr

, and hydrolysis liberates

CH X_{3} COOH

. A Grignard reagent plus

CO X_{2}

gives a carboxylic acid with one extra carbon.

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