A metal ' $X$ ' is used in thermite process. When $X$ is burnt in air it gives an amphoteric oxide '

Question

A metal ' $X$ ' is used in thermite process. When $X$ is burnt in air it gives an amphoteric oxide ' $Y$ '. ' $X$ ' and ' $Y$ ' are respectively\

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.