MCQ
Choose the $CORRECT$ comparison of decreasing $\pi -$ bond order of $S-O$ bond ?
- ✓$SO_3 > SO_4^{2-} > SO_3^{2-}$
- B$SO_4^{2-} > SO_3 > SO_3^{2-}$
- C$SO_3 >SO_3^{2-} > SO_4^{2-}$
- D$SO_3^{2-} >SO_3 > SO_4^{2-}$
✓
Answer
Correct option: A.
$SO_3 > SO_4^{2-} > SO_3^{2-}$
a
| $S-O$ Bond order (total) | $S-O$ $\pi -$ Bond order | |
| $SO_4^{2-}$ | $1.5$ | $0.5$ |
| $SO_3$ | $2$ | $1$ |
| $SO_3^{2-}$ | $1.33$ | $0.33$ |
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