For a diprotic acid, which of the following is true for firs... | Chemistry | SolveeIt | Solveeit

Today, August 18

Question

For a diprotic acid, which of the following is true for first and second ionization constants? $(K_{a_1}$ and $K_{a_2}$ ).

A

$K_{a_1} = K_{a_2}$

B

$K_{a_1} > K_{a_2}$

C

$K_{a_2} > K_{a_1}$

D

$K_{a_2} \ge K_{a_1}$

Answer

$K_{a_1} > K_{a_2}$

Explanation

Solution

For a diprotic acid, further ionization is difficult,
therefore
$K _{a_1} > K_{a_2}$