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MolSynapse / Question bank / p-Block Elements: Groups 15 and 16 / Sulphur allotropes, SO2, sulphuric acid, oxyacids of sulphur

JEE Advanced levelOne or more correct optionsDifficulty 3 of 3pn085

Which of the following oxyacids of sulphur contain an O-O (peroxo) linkage?

A $H X_{2} SO X_{5}$
B $H X_{2} S X_{2} O X_{8}$
C $H X_{2} S X_{2} O X_{7}$
D $H X_{2} S X_{2} O X_{3}$

Answer: A, B

Peroxomonosulphuric acid

H X_{2} SO X_{5}

and peroxodisulphuric acid

H X_{2} S X_{2} O X_{8}

have the O-O bond. Pyrosulphuric acid has an S-O-S bridge and thiosulphuric acid has an S-S bond (one S replaces an O of sulphuric acid).

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