MCQ
Which of the following is diamagnetic ?
- A${[Fe{(CN)_6}]^{3 - }}$
- ✓${[Co{(C_2O_4)_3}]^{3 - }}$
- C$[FeF_6]^{3-}$
- D$[CoF_6]^{3-}$
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$CuI_{(s)} + e^{\circleddash} \to Cu_{(s)} + I^{\circleddash}_{(aq)}$ ; $E^o = -0.17\, V$
$Zn^{+2}_{(aq)} + 2e^{\circleddash} \to Zn_{(s)}$ ; $E^o = -0.76\, V$
$Zn\,(s)\,\, + \,\,C{u^{2 + }}\,(aq)\, \rightleftharpoons \,Z{n^{2 + \,}}\,(aq)\, + Cu\,(s)$
At $300\,K$ is approximately $(R = 8 \,JK^{-1}\,mol^{-1},\, F = 96000\,C\,mol^{-1})$
| $(A)$ | $OSF_2$ | $OSCl_2$ | $OSBr_2$ |
| $(B)$ | $SbCl_3$ | $SbBr_3$ | $SbI_3$ |
| $(C)$ | $PI_3$ | $AsI_3$ | $SbI_3$ |