There is no `S-S` bond in

Options

A. `S_2O_(4)^(2-)`
B. `S_(2)O_(5)^(2-)`
C. `S_(2)O_(3)^(2-)`
D. `S_(2)O_(7)^(2-)`

Answer

D

Explanation

The structure are `""^(-)O-underset(S_(2)O_(4)^(2-)) overset(S)overset(||)S-overset(O)overset(||)S-O^(-)`