MCQ
Identify which of the structures below are meso structures ?


- ✓$1$ and $3$
- B$1,3$ and $5$
- C$1,3$ and $4$
- D$2$ and $5$


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(Where the constant $B$ is positive)
$2A{B_2}(g) \rightleftharpoons 2AB(g) + {B_2}(g)$