MCQ
The $Cl - Co - Cl$ bond angle values in a fac$\left[ Co \left( NH _3\right)_3 Cl _3\right]$ complex is/are:
- A$90^{\circ}$ and $180^{\circ}$
- ✓$90^{\circ}$
- C$180^{\circ}$
- D$90^{\circ}$ and $120^{\circ}$

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${E^0}_{F{e^{3 + }}/F{e^{2 + }}}$ $=$ $ + 0.77\;V$
${E^0}_{S{n^{2 + }}/Sn} = - 0.14\;V$ Under standard conditions the potential for the reaction $S{n_{(s)}} + 2F{e^{3 + }}(aq) \to 2F{e^{2 + }}(sq) + S{n^{2 + }}(aq)$ is ............ $\mathrm{V}$