For a weak acid $HA,$ Ostwald's dilution law is represented by the equation
For a weak acid $HA,$ Ostwald's dilution law is represented by the equation
- A
${K_a} = \frac{{\alpha c}}{{1 - {\alpha ^2}}}$
- B
${K_a} = \frac{{{\alpha ^2}c}}{{1 - \alpha }}$
- C
$\alpha = \frac{{{K_a}c}}{{1 - c}}$
- D
${K_a} = \frac{{{\alpha ^2}c}}{{1 - {\alpha ^2}}}$
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- [JEE MAIN 2021]