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The K(a) for formic acid and acetic acid...

The `K_(a)` for formic acid and acetic acid are `2.1 xx 10^(-4)` and `1.1 xx 10^(-5)`, respectively. Calculate relative strength of acids

A

`10:1`

B

`1:10`

C

`1:sqrt(10)`

D

`sqrt(10):1`

Text Solution

Verified by Experts

Relative strengths of weak acids=`sqrt(((K_(a_(1)))/(K_(a_(2)))))`
Assume `C_(1)` and `C_(2)` are same (Although not given).
Relative strength = `sqrt(((K_(a_(1)))/(K_(a_(2)))))=sqrt(((1.8xx10^(-4))/(1.8xx10^(-5))))`
Relative strength for `HCOOH` to `CH_(3)COOH=sqrt(10):1`
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RESONANCE ENGLISH-IONIC EQUILIBRIUM-Part -II (only one option correct type)
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