MCQ
The coordination number of $Cu$ in complex ${\left[ {Cu{{\left( {{H_2}O} \right)}_4}} \right]^{ + + }}$ is
- ✓$4$
- B$3$
- C$2$
- D$1$
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$(R = 8.314 \,J/mol\,K)\,(\ln 7.5 =2.01)$
$F_{2(g)} + 2e^- \rightarrow 2F^-_{(aq)}\, ;$ $E^o = + 2.85\, V$
$Cl_{2(g)} + 2e^- \rightarrow 2Cl^-_{(aq)}\, ;$ $E^o = + 1.36\, V$
$Br_{2(l)} + 2e^- \rightarrow 2Br^-_{(aq)}\, ;$ $E^o = + 1.06\, V$
$I_{2(s)} + 2e^- \rightarrow 2I^-_{(aq)}\, ;$ $E^o = + 0.53\, V$
The strongest oxidising and reducing agents respectively are