PYQ NEET- The F And D Block Elements L-6
Question: Which of the following reactions is the metal displacement reaction? Choose the right option.
A) $2 \mathrm{~Pb}\left(\mathrm{NO}_3\right)_2 \rightarrow 2 \mathrm{PbO}+4 \mathrm{NO}_2+\mathrm{O}_2 \uparrow$
B) $2 \mathrm{KClO}_3 \stackrel{\Delta}{\longrightarrow} 2 \mathrm{KCl}+3 \mathrm{O}_2$
C) $\mathrm{Cr}_2 \mathrm{O}_3+2 \mathrm{Al} \stackrel{\Delta}{\longrightarrow} \mathrm{Al}_2 \mathrm{O}_3+2 \mathrm{Cr}$
D) $\mathrm{Fe}+2 \mathrm{HCl} \rightarrow \mathrm{FeCl}_2+\mathrm{H}_2 \uparrow$
BETA
