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The dissociation constant of monobasic a...

The dissociation constant of monobasic acids `A, B,C` and `D` are `6 xx 10^(-4),5xx10^(-5), 3.6 xx 10^(-6)`, and `7 xx 10^(-10)`, respectively. The `pH` values of their `0.1M` aqueous solutions are in the order.

A

`A lt BltC`

B

`AgtBgtC`

C

`A=B=C`

D

`AgtBltC`

Text Solution

Verified by Experts

The correct Answer is:
A
More is the dissociation constant, more is the concentration of `H^(+)` ions and hence smaller is the pH because `pH =-log [H^(+)]`
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