P-Block Elements Ques 101

Question: The strongest acid amongst the following is

[IIT 1989]

Options:

A) $ HClO_4 $

B) $ HClO_3 $

C) $ HClO_2 $

D) $ HClO $

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Answer:

Correct Answer: A

Solution:

Among the given acids, perchloric acid $ HClO_4$ is the strongest acid. This is because the conjugate base $ClO^{−4}$ ion is the weakest base.

Among oxyacids of halogens the decreasing order of the acid strength is:

$ HClO_4> $ $ HClO_3> $ >$ HClO_2 $ $ HClO $



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