MCQ
In $Fe_2(CO)_9$, the two iron atoms are
- Alinked only directly
- ✓linked directly along with $3\,CO$ molecules as bridging ligands
- Clinked only through $3\,CO$ molecules as bridging ligands
- Djoined through one $CO$ group as bridging ligands

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$(a)$ $N,N-$ Dimethylaniline
$(b)$ $2,4 -$ Dimethylaniline
$(c)$ $N -$ methy $l-o-$ methylaniline
$(d)$ $p -$ Methylbenzylamine
$Hb{O_2} + {H_3}{O^ + }C{O_2} \rightleftharpoons \left( {{H^ + } - Hb - C{O_2}} \right) + {O_2} + {H_2}O$
Release of $O_2$ is favoured when there is
Phenol $\xrightarrow{{Zn\,\,dust}}X\,\xrightarrow[{Anhyd.\,AlC{l_3}}]{{C{H_3}Cl}}\,Y\xrightarrow{{Alkaline\,\,KMn{O_4}}}\,Z$
the product $Z$ is
