Question

Which is correct statement about $ Cr_{2}O_{7}^{2-} $ structure?

• A. It has neither Cr - Cr bonds nor O - O bonds
• B. It has one Cr - Cr bond and six O - O bonds
• C. It has no Cr - Cr bond and has six O - O bonds
• D. It has one Cr - Cr bond and seven Cr - O bonds

Answer 1

Answer: (A)

Structure of $ Cr_{2}O_{7}^{2-} $ is
Thus, it has neither $Cr - Cr$ bonds nor $O - O$ bonds.