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  4. CH3MgBr + CO2 xrightarrow textDry ether Y xrightarrowH3O⊕ Z Identify Z from the following

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Q. $ CH_{3}MgBr + CO_{2} \xrightarrow{\text{Dry ether}} Y \xrightarrow{H_{3}O^{\oplus}} Z $
Identify $ Z $ from the following

EAMCETEAMCET 2014

Solution:

When Grignard's reagent is treated with $CO _{2},$ a magnesium complex is formed, which on further hydrolysis yields monocarboxylic acid.

$CH _{3}- Mg - Br +\xrightarrow{\text { Dry ether }}$

$CH _{3}- \overset{\underset{||}{O}}{C} - O - MgBr \xrightarrow{ H _{3} O+ }$

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