Q32 / 180 · COMEDK 2019 · Chemistry

The ebullioscopic constant is the elevation in boiling point produced by

A
1 molar solution
Correct answer
B
1 molal solution
C
$1 \mathrm{~N}$ solution
D
$10 \%$ solution

Solution

The ebullioscopic constant $\left(K_{b}\right)$ is the elevation in boiling point produced by 1 molal solution i.e. $\quad \Delta T_{b}=K_{b} m$ When, $\quad m=1$ $K_{b}=\Delta T_{b}$

Hence, the correct answer is option: 'B'.

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