MCQ
The structure of $(B)$ is


- ✓

- B

- C

- D







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$C{u^{2 + }}_{{\text{(aq)}}}\, + \,\,{e^ - }\, \to \,C{u^ + }_{{\text{(aq)}}}$
and $C{u^+}_{{\text{(aq)}}}\, + \,\,{e^ - }\, \to \,C{u }_{{\text{(s)}}}$
are $+0.15\,V$ and $+0.50\,V$ respectively. The value of will be ............ $\mathrm{V}$

| List$-I$ Name of oxo acid | List$-II$ Oxidation state of $P$ |
| $(a)$ Hypo phosphorous acid | $(i) +5$ |
| $(b)$ Orthophosphoric acid | $(ii)+4$ |
| $(c)$ Hypo phosphoric acid | $(iii) +3$ |
| $(d)$ Orth phosphorous acid | $(iv)+2$ |
| $(v)+1$ |
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