Chemistry - Surface Chemistry Question with Solution | TestHub

$\text{C}\text{u}+\text{C}\text{u}\text{C}{\text{l}}_2\to \text{C}{\text{u}}_2\text{C}{\text{l}}_2$

$2\text{M}\text{g}+\text{C}{\text{O}}_2\to 2\text{M}\text{g}\text{O}+\text{C}$

$2\text{H}\text{N}{\text{O}}_3+3{\text{H}}_2\text{S}\to 3\text{S}+4{\text{H}}_2\text{O}+2\text{N}\text{O}$

Both (B) and (C)