Which of the following is the strongest acid?

CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases

Problem

Which of the following is the strongest acid? (1) ClO3(OH)\text{ClO}_3(\text{OH}) (2) ClO2(OH)\text{ClO}_2(\text{OH}) (3) SO(OH)2\text{SO}(\text{OH})_2 (4) SO2(OH)2\text{SO}_2(\text{OH})_2

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