A metal ' $X$ ' is used in thermit process. When ' $X$ ' is heated with oxygen, it gives an oxide '

Question

A metal ' $X$ ' is used in thermit process. When ' $X$ ' is heated with oxygen, it gives an oxide ' $Y$ ', which is amphoteric in nature. ' $X$ ' and ' $Y$ ' respectively are\

Professor PC Thomas Classes · Answer

(b) : The metal used in thermit process is aluminium.\ $\underset{(X)}{2 \mathrm{AI}}+\frac{3}{2} \mathrm{O}_{2} \xrightarrow{\Delta} \underset{(Y)}{\mathrm{Al}_{2} \mathrm{O}_{3}}$\ $\mathrm{Al}_{2} \mathrm{O}_{3}$ is amphoteric in nature as it can react with both acids and bases.