(Solved): Which best describes the first step of the mechanism of the reaction below? C H3C + CHMgBr 1) e ...

Which best describes the first step of the mechanism of the reaction below? C H3C + CH?MgBr 1) ether 2) H3O+ CH3 CH3MgBr acts as an electrophile and attacks the carbonyl oxygen. The methyl group on acetone leaves forming a carbonyl carbocation. The carbonyl carbon acts as an nucleophile and attacks CH3MgBr. CH3MgBr acts as an nucleophile and attacks the carbonyl carbon.