A) Formic acid is the strongest acid
B) Acetic acid is the weakest acid
C) Carbonic acid is the strongest acid
D) Acetic acid is weaker than carbonic acid
Correct Answer: A
Solution :
On decreasing the\[p{{K}_{a}}\]value, acidic strength increases, ie, smaller the value of\[p{{K}_{a}},\]stronger the acid is. Hence, formic acid is the strongest acid.
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