Question

${Si}_2{O}_7^{6-}$ anion is obtained when

• A. no oxygen of a $Si{O}_4^{4-}$ tetrahedron is shared with another $Si{O}_4^{4-}$ tetrahedron
• B. one oxygen of a $Si{O}_4^{4-}$ tetrahedron is shared with another $Si{O}_4^{4-}$ tetrahedron
• C. two oxygen of a $Si{O}_4^{4-}$ tetrahedron is shared with another $Si{O}_4^{4-}$ tetrahedron
• D. three oxygen of a $Si{O}_4^{4-}$ tetrahedron is shared with another $Si{O}_4^{4-}$ tetrahedron

Answer 1

The correct option is B one oxygen of a $Si{O}_4^{4-}$ tetrahedron is shared with another $Si{O}_4^{4-}$ tetrahedron

Si₂O₇⁶⁻ is formed when one oxygen of a SiO₄⁴⁻ tetrahedron is shared with another SiO₄⁴⁻ tetrahedron as shown in the figure.

Hence, option B is correct.