$ \downarrow $ $N{O^ + }$ $(2e^-$ donor $)$
$EAN$ $26-1+12=37$
$\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{NO}\right]^{+2} \mathrm{SO}_{4}^{-2}$
$ \downarrow $ $N{O}$ $(3e^-$ donor $)$
$EAN$ $26-2+10+3=37$
$24+13=37$
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$Fe _{3} O _{4}( s )+4 CO ( g ) \rightarrow 3 Fe ( l )+4 CO _{2}( g )$
when $4.640 \,kg$ of $Fe _{3} O _{4}$ and $2.520 \,kg$ of $CO$ are allowed to react then the amount of iron (in $g$ ) produced is $....$
[Given : Molar Atomic mass $\left( g\, mol ^{-1}\right): Fe =56$
Molar Atomic mass $\left( g \,mol ^{-1}\right): 0=16$
Molar Atomic mass $\left( g\, mol ^{-1}\right):= C =12$
Reason : $Si-O-Si$ linkages are moisture sensitive.
