Consider the following statements about carbanionic stability: (I) CH3OCH2⁻ is more stable than CH3CH2⁻ (II) Me2CH⁻ is more stable than CH3CH2CH2⁻ (III) CH2=CH-CH2⁻ is more stable than CH3CH2CH2⁻ (IV) CH2=CH⁺ is more stable than CH3CH2⁺ Which statements are correct?

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III and IV are correct. Statement I is false: oxygen lone pair donation (+M) destabilizes CH3OCH2⁻. Statement II is false: alkyl groups (+I) destabilize carbanions, so secondary is less stable than primary. Statement III is true: allylic resonance stabilizes CH2=CH-CH2⁻. Statement IV is true: vinyl cation (sp-hybridized) is considered more stable than primary carbocation in standard JEE treatment.

Consider the following statements about carbanionic stability: (I) CH3OCH2⁻ is more stable than CH3CH2⁻ (II) Me2CH⁻ is more stable than CH3CH2CH2⁻ (III) CH2=CH-CH2⁻ is more stable than CH3CH2CH2⁻ (IV) CH2=CH⁺ is more stable than CH3CH2⁺ Which statements are correct?

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