MCQ
Ionisation constant of a weak acid $(HA)$ in terms of $\Lambda _m^\infty $ and ${\Lambda _m}$ is
- A${K_a} = \frac{{C\Lambda _m^\infty }}{{\left( {{\Lambda _m} - {\Lambda ^\infty }} \right)}}$
- ✓${K_a} = \frac{{C\Lambda _m^2}}{{\Lambda _m^\infty \left( {\Lambda _m^\infty - {\Lambda _m}} \right)}}$
- C${K_a} = \frac{{C{{\left( {\Lambda _m^\infty } \right)}^2}}}{{\Lambda _m^\infty \left( {{\Lambda _m} - {\Lambda ^\infty }} \right)}}$
- DNone of these
