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Suggest a suitable reagent to prepare se...

Suggest a suitable reagent to prepare secondary alcohol with identical group using Grignard reagent.

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Acetaldehyde reacts with Grignard reagent to give addition product, which on further undergoes acid hydrolysis to yield secondary alcohol, that is isopropyl alcohol.
`underset("(Acetaldehyde)")(CH_(3)-overset(O)overset("||")C-H)+underset("(methyl magnesium bromide)")(CH_(3)-Mg-Br)rarrunderset(" "CH_(3))underset(" |")overset(" "OMgBr)overset(" |")(CH_(3)-C-H)overset (H^(+)//H_(2)O)rarrunderset("(isopropyl alcohol) ")(underset(CH_(3)"")underset("| ")(CH_(3)-CH-OH)+MgBr(OH)`
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