alleryGrignard reagent: R-X + Mg in dry ether gives:
AR-OH
BR-Mg-X (organomagnesium halide; powerful nucleophile/base)
CR-Cl
DNo reaction
Answer & Solution
Correct answer: B. R-Mg-X (organomagnesium halide; powerful nucleophile/base)
**Grignard reagent:** R-MgX. Forms in dry ether.
Carbon is δ-, magnesium δ+.
Acts as carbanion equivalent.
Reacts with H₂O (destroys reagent: → R-H), CO₂ (→ RCOOH), carbonyls (→ alcohols).
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