MCQ
Turnbull's blue is
- AFerricyanide
- ✓Ferrous ferricyanide
- CFerrous cyanide
- DFerri-ferrocyanide
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| Compound | $\ce{NH_3}$ | $\ce{PH_3}$ | $\ce{AsH_3}$ | $\ce{SbH_3}$ |
| $\Delta_{\text{diss}}(\text{E}-\text{H})/\text{kJ mol}^{-1}$ | $389$ | $322$ | $297$ | $255$ |
