MEDIUMMCQ SINGLENEET ChemistryOrganic ChemistryAldehydes and ketonesChemical Reactions of Carbonyl compounds

Identify the reactant X and the product Y

A.X = MgCl2 ; Y = CH3CH = CH2

B.X = CH3MgCl ; Y = C2H5COCH3

C.X = CH3MgCl ; Y = (CH3)3C – OH✓ Correct

D.X = C2H5MgCl ; Y = (CH3)3C – OH

Explanation

In the given reaction the reactant is acetone and the first product formed is (퐶퐻3)3퐶−푂푀푔−퐶푙, so in this product there is addition of a methyl group and magnesium chloride, hence the X will be 퐶퐻3푀푔퐶푙, and 퐶퐻3푀푔퐶푙is a Grignard reagent. When this compound is hydrolyzed, there is formation of tertiary alcohol, so the product will be (퐶퐻3)3퐶−푂퐻and (퐶퐻3)3퐶−푂퐻is Y.

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