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The reaction representing the Mond process for metal refining is__________

Option: 1

\mathrm{ZnO}+\mathrm{C} \stackrel{\Delta}{\rightarrow} \mathrm{Zn}+\mathrm{CO}


Option: 2

\mathrm{Zr}+2 \mathrm{I}_2 \stackrel{\Delta}{\rightarrow} \mathrm{ZrI}_4


Option: 3

2 \mathrm{~K}\left[\mathrm{Au}(\mathrm{CN})_2\right]+\mathrm{Zn} \stackrel{\Delta}{\rightarrow} \mathrm{K}_2\left[\mathrm{Zn}(\mathrm{CN})_4\right]+2 \mathrm{Au}


Option: 4

mathrm\: {Ni}+4 \mathrm{CO} \stackrel{\Delta}{\rightarrow} \mathrm{Ni}(\mathrm{CO})_4


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Pankaj Sanodiya

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