MCQ
Which is correctly matched
Compound $\rightarrow$ O.State of $C.M.I.$
- AFerrocene $\rightarrow$ $+3$
- BSodium Nitropruside $\rightarrow$ $+1$
- CBrown Ring complex $\rightarrow$ $+3$
- ✓None of these
Compound $\rightarrow$ O.State of $C.M.I.$
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Reaction $- (2): CH_3 -CH = CH -CH_3 \xrightarrow{KMn{{O}_{4}}/NaI{{O}_{4}}}(C)$ $2\,mole$
Product $(B)$ and $(C)$ respectively are

| List-$I$ Species | List-$II$ Electronic distribution |
| $(A)$ $\mathrm{Cr}^{+2}$ | $(I)$ $3 \mathrm{~d}^8$ |
| $(B)$ $\mathrm{Mn}^{+}$ | $(II)$ $3 \mathrm{~d}^3 4 \mathrm{~s}^1$ |
| $(C)$ $\mathrm{Ni}^{+2}$ | $(III)$ $3\mathrm{~d}^4$ |
| $(D)$ $\mathrm{V}^{+}$ | $(IV)$ $3 \mathrm{~d}^5 4 \mathrm{~s}^1$ |
Choose the correct answer from the options given below: