alleryGrignard reagent (RMgX) is prepared by:
AReaction of alcohol with Mg
BReaction of alkyl halide (R-X, X = Cl, Br, I) with Mg metal in dry ether
CReaction of carboxylic acid with Mg
DReaction of alkene with Mg
Answer & Solution
Correct answer: B. Reaction of alkyl halide (R-X, X = Cl, Br, I) with Mg metal in dry ether
**Grignard reagent formation**: R-X + Mg
→ RMgX in **dry ether** (or dry THF).
The carbon-Mg bond is polar covalent (Cδ⁻ – Mgδ⁺), while Mg-X is ionic.
Discovered by Victor Grignard (1900); Nobel Prize 1912.
Keep practising Haloalkanes and Haloarenes
Browse all Haloalkanes and Haloarenes questions for AP Intermediate 2nd Year, or explore more Chemistry topics.
Related questions
As per your syllabus, the STAGGERED form of ethane is more stable than ECLIPSED for which As per your syllabus, Mechanism, the FIRST step of methane chlorination under sunlight is As per your syllabus, the rate of substitution of HYDROGENS in alkane halogenation goes inAs per your syllabus, the rate of HALOGENATION of alkanes (F₂, Cl₂, Br₂, I₂) decreases in As per your syllabus, (ii), in Kolbe electrolytic synthesis of alkanes, the alkane gas is As per your syllabus, (i), heating CH₃COONa with NaOH + CaO (soda-lime) produces which gasAs per your syllabus, (ii), the Wurtz reaction uses which reagent + solvent for coupling aAs per your syllabus, + Fig 9.1, the H-C-H bond angle in methane and the carbon hybridisat