First slide

Ionization constants of weak acids, PH of weak acids

Question

Which of the following is relatively stronger acid ? (K_a values are given in brackets)

Easy

A

$\large HA\,(2 \times {10^{ - 4}})$
B

$HB\,(3 \times {10^{ - 5}})$
C

$HC\,(1.8 \times {10^{ - 3}})$
D

$HD\,(9.6 \times {10^{ - 10}})$

Solution

Higher the value of K_a, greater will be the acidic strength.

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