A) \[1.0\]
B) \[3.0\]
C) \[2.0\]
D) \[4.5\]
Correct Answer: A
Solution :
The acid is called strong acid when it ionise up to great extent i.e. if its \[{{K}_{a}}\]value is large. We know that, \[_{p}{{K}_{a}}=\log \frac{1}{{{K}_{a}}}\] Hence, larger the value of Ka, smaller will be the value of \[_{p}{{K}_{a}}\]. Hence, low value of \[_{p}{{K}_{a}}\] means that acid is strong.
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