In each of the following the equilibrium lies to the right:
$HX + Y^{-} \to X^{-} + HY$ ( $K = 1 0^{5}$ )
$HZ + X^{-} \to Z^{-} + HX$ ( $K = 1 0^{2}$ )
$HW + Y^{-} \to W^{-} + HY$ ( $K = 1 0^{8}$ )
The correct order of acid strength is:

Question

In each of the following the equilibrium lies to the right:

$HX + Y^{-} \to X^{-} + HY$ ( $K = 1 0^{5}$ )

$HZ + X^{-} \to Z^{-} + HX$ ( $K = 1 0^{2}$ )

$HW + Y^{-} \to W^{-} + HY$ ( $K = 1 0^{8}$ )

The correct order of acid strength is:

TestHub · Accepted Answer

Reaction 1: HX is stronger than HY by a factor of $1 0^{5}$ .

Reaction 2: HZ is stronger than HX by $1 0^{2}$ , so HZ is stronger than HY by $1 0^{7}$ .

Reaction 3: HW is stronger than HY by $1 0^{8}$ , which is more than HZ ( $1 0^{7}$ ).

Order: $HW > HZ > HX > HY$ .

Answer: (A).

Chemistry - Ionic Equilibrium Question with Solution | TestHub