Which is more reactive nucleophile in polar aprotic solvent ?

which is more reactive nucleophile in polar protic solvent ?

which is more reactive nucleophile in polar protic solvent ?

Aprotic solvent is :

SN^2 reactions of alkyl halides is a bimolecular reaction which take place through formation of a transition state. The rate of reaction depends on the concentration of alkyl halide and nucleophile.The reaction is favoured by strong nucleophlie in polar aprotic solvents. In the transition state in the SN^2 reaction is represented as . The central carbon atom is

Which of the following is the correct order of strength of necleophiles in polar aprotic solvents

SN^2 reactions of alkyl halides is a bimolecular reaction which take place through formation of a transition state. The rate of reaction depends on the concentration of alkyl halide and nucleophile.The reaction is favoured by strong nucleophlie in polar aprotic solvents. In which of the following solvents SN^2 reaction is more favourable