MCQ
The neutral ligand is
- AChloro
- BHydroxo
- ✓Ammine
- DOxalato
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Step$-1$ : ${\text{A + E }} \rightleftharpoons AE$ (fast)
Step$-2$ :${\text{AE + A }} \to {A_2} + E$ (slow)
Step$-3$ :${{\text{A}}_2}{\text{ + B }} \to {\text{D}}$ (fast)
what rate law best agrees with this mechanism

The order of decreasing reactivities of these alcohols towards nucleophilic substitution with $HBr$ is