Which of the following have X-O-X linkage? (w | vedclass

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(A) The $X-O-X$ linkage refers to a bridge formed by an oxygen atom between two central atoms $X$.$(i) \ Cr_2O_7^{2-}$: The structure is $[O_3Cr-O-CrO

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$(i), (iii)$

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(A) The $X-O-X$ linkage refers to a bridge formed by an oxygen atom between two central atoms $X$.$(i) \ Cr_2O_7^{2-}$: The structure is $[O_3Cr-O-CrO_3]^{2-}$,which contains a $Cr-O-Cr$ linkage.$(ii) \ S_2O_3^{2-}$: The structure is $[O_3S-S]^{2-}$,which contains an $S-S$ linkage,not an $S-O-S$ linkage.$(iii) \ 	ext{Pyrosilicate}$ $(Si_2O_7^{6-})$: The structure is $[O_3Si-O-SiO_3]^{6-}$,which contains an $Si-O-Si$ linkage.$(iv) \ 	ext{Hyponitrous acid}$ $(H_2N_2O_2)$: The structure is $HO-N=N-OH$,which contains an $N=N$ linkage,not an $N-O-N$ linkage.Therefore,$(i)$ and $(iii)$ possess the $X-O-X$ linkage.

Which of the following have $X-O-X$ linkage? (where $X$ is the central atom):
$(i) \ Cr_2O_7^{2-}$
$(ii) \ S_2O_3^{2-}$
$(iii) \ \text{Pyrosilicate}$
$(iv) \ \text{Hyponitrous acid}$

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Which of the following have $X-O-X$ linkage? (where $X$ is the central atom):$(i) \ Cr_2O_7^{2-}$$(ii) \ S_2O_3^{2-}$$(iii) \ \text{Pyrosilicate}$$(iv) \ \text{Hyponitrous acid}$