The dielectric constant of `H_(2)O` is 80. The electrostatic force of attraction between `Na^(+)` and `Cl^(-)` will be

Options

A. reduced to `1/40` in water than in air
B. reduced to `1/80` in water than in air
C. will be increased to 80 in water than in air
D. will remain unchanged

Answer

B

Explanation

Water is a polar solvent and have dielectric constant 80.As NaCl is a polar compound and like dissolves like so, forces of attraction between `Na^+` and `Cl^-` ion will reduce to `1/80` in water.