Which of the following oxyacids has an X-O-X | vedclass

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(C) To identify the $X-O-X$ linkage,we examine the structures of the given oxyacids:$1$. $H_2S_2O_6$ (Dithionic acid) has an $S-S$ linkage: $(HO)SO_2-

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$H_4P_2O_5$

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(C) To identify the $X-O-X$ linkage,we examine the structures of the given oxyacids:$1$. $H_2S_2O_6$ (Dithionic acid) has an $S-S$ linkage: $(HO)SO_2-SO_2(OH)$.$2$. $H_2S_2O_5$ (Pyrosulphurous acid) has an $S-O-S$ linkage: $(HO)SO-O-SO_2(OH)$.$3$. $H_4P_2O_5$ (Pyrophosphorous acid) has a $P-O-P$ linkage: $(HO)_2P-O-P(OH)H$.$4$. $H_4P_2O_8$ (Peroxodiphosphoric acid) has a $P-O-O-P$ linkage.Both $H_2S_2O_5$ and $H_4P_2O_5$ contain an $X-O-X$ linkage. However,in standard multiple-choice contexts for this specific question,$H_4P_2O_5$ is the classic example of a $P-O-P$ linkage.

Which of the following oxyacids has an $X-O-X$ linkage?

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