Which is an incorrect match?

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(D) Let us analyze each option:$A$. Borax $(Na_2[B_4O_5(OH)_4] \cdot 8H_2O)$ contains the $[B_4O_5(OH)_4]^{2-}$ ion,which consists of two $BO_4$ tetra

Vedclass · Accepted Answer

$(HPO_3)_3$; cyclic compound in which $3$ $P-P$ linkages are present.

Vedclass · Answer

(D) Let us analyze each option:$A$. Borax $(Na_2[B_4O_5(OH)_4] \cdot 8H_2O)$ contains the $[B_4O_5(OH)_4]^{2-}$ ion,which consists of two $BO_4$ tetrahedra and two $BO_3$ triangles,forming two six-membered rings. This is correct.$B$. $P_4O_{10}$ has an adamantane-like structure containing $4$ six-membered rings (each formed by $P-O-P-O-P-O$ linkages). This is correct.$C$. Beryl $(Be_3Al_2Si_6O_{18})$ is a cyclic silicate containing $[Si_6O_{18}]^{12-}$ rings. In this structure,each $Si$ atom is bonded to $4$ oxygen atoms,where $2$ oxygen atoms are shared and $2$ are unshared (monovalent). Since there are $6$ $Si$ atoms,there are $6 	imes 2 = 12$ monovalent oxygen atoms. This is correct.$D$. $(HPO_3)_3$ (trimetaphosphoric acid) is a cyclic compound with a $P_3O_9$ ring structure where $P$ atoms are linked via oxygen atoms ($P-O-P$ linkages). There are no $P-P$ linkages present in this structure. Thus,this statement is incorrect.

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