Answer :
In this lab, phenyl magnesium bromide, a Grignard reagent, reacts with benzophenone. The Grignard reagent acts as the nucleophile (option b) in this chemistry.
It has a highly polarized carbon-magnesium bond, with the carbon being electron-rich, allowing it to attack electrophilic centers such as the carbonyl carbon in benzophenone. This reaction results in the formation of a new carbon-carbon bond and ultimately yields a tertiary alcohol after hydrolysis. Grignard reagents are known for their strong nucleophilic character, making them essential tools in organic synthesis.
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