Θ Θ Θ Θ C H , N H ,O H,F Among these nucleophiles, which of the following orders is correct for their nucleophilicity in acetone? (a) Θ Θ Θ Θ CH N H O H> F (b) F OH NH CH (c) Θ Θ Θ Θ O H> N H F CH

Acetone is a polar solvent which means that there is a large dipole moment of the molecule due to difference in electronegativities of oxygen and hydrogen atoms. So, as the electronegativity of the central atom increases the nucleophilicity decreases.