The pKa, value of four acids are given below at 25oC. The strongest acid is:
A
2
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B
2.5
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C
3
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D
4
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Solution
The correct option is A 2 pka=logka ∴ More the value of pka weaker is the acid. ∴ Acid having lowest value of pka, is strongest acid. ∴ Acid having pka, value 2 is weakest acid.