Chemistry · PYQ NEET UG 2017

In which pair of ions both the species contain S-S bond?

1. \( \text{S}_4\text{O}_6^{2-}, \text{S}_2\text{O}_3^{2-} \)
2. \( \text{S}_2\text{O}_7^{2-}, \text{S}_2\text{O}_8^{2-} \)
3. \( \text{S}_4\text{O}_6^{2-}, \text{S}_2\text{O}_7^{2-} \)
4. \( \text{S}_2\text{O}_7^{2-}, \text{S}_2\text{O}_3^{2-} \)