Chemistryhard · Past Paper
Which of the following is the strongest acid?
A$HClO_4$
B$HClO_3$
C$HClO_2$
D$HClO$
✓ Correct Answer: A — $HClO_4$
Among oxyacids of the same element, the one with the highest oxidation state of the central atom is usually the strongest.
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