Which is the correct arrangement of the polarity of solvents?
Which is the correct arrangement of the polarity of solvents?
Select an option to attempt
Correct Answer: Option A
Explanation
Polarity of solvents is quantified by the dielectric constant (, relative permittivity) and empirical polarity indices (ETN, Snyder's polarity index). Dielectric constants at 25°C: Water ():(most polar common solvent — hydrogen bonding, high dipole moment). DMSO (dimethyl sulfoxide):(highly polar aprotic; strong dipole). DMF (dimethylformamide):(polar aprotic). THF (tetrahydrofuran):(Mediumly polar; cyclic ether). Order from most to least polar:. Acetonitrile (CHCN,) is similar to DMF. The question answer (Option 1: Water > DMSO > DMF > THF) is correct.