Let the oxidation state of $P t=x$, then
$(x \times 1)+3 \times(0)+(1 \times-1)+(1 \times-1)+(1 \times-1)=+1$
$x-3=+1$
$x=+4$
Thus, the $I U P A C$ name of the complex $\left[P t(N H)_{3} B r\left(N O_{2}\right) C l\right] C l$ is triamine bromidochloridonitro platinum $(IV)$ chloride as the names of the different ligands are arranged alphabetically.
| સૂચિ $- I$ | સૂચિ $- II$ |
| $(a)$ $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}$ | $(i)$ $5.92 \,\mathrm{BM}$ |
| $(b)$ $\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}$ | $(ii)$ $0 \,\mathrm{BM}$ |
| $(c)$ $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}$ | $(iii)$ $4.90\, \mathrm{BM}$ |
| $(d)$ $\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}$ | $(iv)$ $1.73\, \mathrm{BM}$ |
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