The rise in boiling point of a solution containing `1.8g` glucose in `100g` of a solvent is `0.1^(@)C`. The molal elevation constant of the liquid is-

Explanation

`DeltaT_(b) = 0.1^(@)C, m = 180, W = 100, w = 1.8`
`K_(b) = (DeltaT_(b) xx m xx W)/(1000 xx w) = (180 xx 0.1 xx 100)/(1000 xx 1.8) = 1.0`