alleryA **Grignard reagent** has the general formula
A$R_2Zn$
B$RNa$
C$RLi$
D$RMgX$
Answer & Solution
Correct answer: D. $RMgX$
Grignard reagents are alkyl/aryl magnesium halides $RMgX$, prepared by reacting an alkyl/aryl halide with magnesium in dry ether.
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