MCQ
Arrange these compounds in decreasing order of basic strength ?


- A$(i) > (ii) > (iii) > (iv)$
- B$(ii) > (iii) > (i) > (iv)$
- ✓$(iv) > (i) > (iii) > (ii)$
- D$(iv) > (i) > (ii) > (iii)$


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$(i)\, Cu^{2+} + 2e^- \rightarrow Cu\,,$ $ E^o = 0.337\, V$
$(ii)\, Cu^{2+} + e^- \rightarrow Cu^+\,,$ $ E^o = 0.153\, V$
Electrode potential, $E^o$ for the reaction,
$Cu^+ + e^- \rightarrow Cu\,,$ will be ............ $V$.
Statement $I :$ In $CuSO _{4} .5 H _{2} O , Cu - O$ bonds are present.
Statement $II :$ In $CuSO _{4} .5 H _{2} O$, ligands coordinating with $Cu$ $(II)$ ion are $O$-and $S$-based ligands.
In the light of the above statements, choose the correct answer from the options given below
