Question

Which of the following bond has the highest energy ?

• A. $Se-Se$
• B. $Te-Te$
• C. $S-S$
• D. $O-O$

Answer 1

The correct option is C $S-S$

The $S-S$ bond has highest energy and highest bond strength For example, the bond energies of $S-S$ and $O-O$ bond are $49$ and $33$ kcal/mol respectively. As we move down the group from $S$ to $Se$ and $Te$, the bond energy decreases.