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Chemistry
Which of the following Ka values, represents the strongest acid?
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Q. Which of the following $ {{K}_{a}} $ values, represents the strongest acid?
JIPMER
JIPMER 1999
A
$ {{10}^{-4}} $
B
$ {{10}^{-8}} $
C
$ {{10}^{-5}} $
D
$ {{10}^{-2}} $
Solution:
Larger the $ {{K}_{a}} $ (dissociation constant) of an acid, more will be the $ {{H}^{+}} $ ions produced, hence, stronger will be the acid. Hence, $ {{K}_{a}}={{10}^{-2}} $ represents the strongest acid.