The dissociation constant of two acids HA1 and HA2 are 3.

Question

The dissociation constant of two acids

H A_{1}

and

H A_{2}

are

3.14 \times 10^{- 4}

and

1.96 \times 10^{- 5}

respectively. The relative strength of the acids will be approximately

Options:

A . 1:4

B . 4:1

C . 1:16

D . 16:1

Answer: Option B
:
B

\frac{α_{1}}{α 2} = \sqrt{\frac{K_{a 1}}{K_{a 2}}} = \sqrt{\frac{3.14 \times 10^{- 4}}{1.6 \times 10^{- 5}}}

4 : 1

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