Question

Mond’s Process involves

• A. $C{r}_2{O}_3$ $+Al$ $\stackrel{\Delta }{\to }$ $2Cr+A{l}_2{O}_3$
• B. $TiC{l}_4$ $+2Mg$ $\stackrel{\Delta }{\to }$ $Ti$ $+2MgC{l}_2$
• C. $Ni(CO{)}_4$ $\stackrel{\Delta }{\to }$ $Ni+4CO$
• D. $Zr{I}_4$ $\stackrel{\Delta }{\to }$ $Zr+2I_2$

Answer 1

The correct option is C

$Ni(CO{)}_4$ $\stackrel{\Delta }{\to }$ $Ni+4CO$

Mond’s / Carbonyl process is a technique created by Ludwig Mond in 1890 to extract and purify Nickel.

$NiO\left(s\right)$ $+H_2$ $\stackrel{{200}^{\circ }C}{\to }$ $Ni\left(s\right)$ $+H_{2}O\left(g\right)$

(Impurities)

$Ni\left(s\right)$ $+4CO\left(g\right)$ $\stackrel{50-{60}^{\circ }C}{\to }$ $Ni\left(CO{)}_4\right(g)$

(impurities)

$Ni\left(CO{)}_4\right(g)$ $\stackrel{220-{250}^{\circ }C}{\to }$ $Ni\left(s\right)+4CO\left(g\right)$