Q. In which pair of ions both the species contain S - S bond ?
A) $S_2O_7^{2-}$, $S_2O_3^{2-}$
B) $S_4O_6^{2-}$, $S_2O_3^{2-}$
C) $S_2O_7^{2-}$, $S_2O_8^{2-}$
D) $S_4O_6^{2-}$, $S_2O_7^{2-}$
Explanation
[Solution] Tetrathionate and thiosulphate both contain S-S bonds; $S_2O_7^{2-}$ and $S_2O_8^{2-}$ have S-O-S and S-O-O-S links. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.