JEE Advanced Chemistry question
How many of the following have peroxy linkages? H2S2O3, H2S2O8, H2SO5, CrO5, BaO2, KO2
Answer: 4
Solution
H2S2O3 (thiosulphuric acid) has an S−S bond, not a peroxy (O−O) linkage — no. H2S2O8 (Marshall's acid) has one O−O peroxy linkage — yes. H2SO5 (Caro's acid) has one O−O peroxy linkage — yes. CrO5 (chromium peroxide) has two O−O peroxy linkages — yes. BaO2 (barium peroxide) contains the simple
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