MCQ
Which has the maximum ferromagnetic character
- ✓$Fe$
- B$Co$
- C$Ni$
- D$Pt$

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$\begin{array}{*{20}{c}} {C{H_2}OH} \\ {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ {C{H_2}OH} \end{array}$ $+$ oxalic acid $\xrightarrow{{{{210}^o}C}}$ $\quad\quad X$
$\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad$(major product)
$(A)$ $BF _{3}$
$(B)$ $SiCl _{4}$
$(C)$ $PCl _{5}$
$(D)$ $SF _{6}$