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  • A metal X, which is used in thermit process, when heated with oxygen gives an oxide Y which is amphoteric in nature. Identify X and Y. Write balanced chemical equations of the reactions of oxide Y with hydrochloric acid and sodium hydroxide.

A metal X, which is used in thermit process, when heated with oxygen gives an oxide Y which is amphoteric in nature. Identify X and Y. Write balanced chemical equations of the reactions of oxide Y with hydrochloric acid and sodium hydroxide.

 

 

 

 
 
 
 
 

Answers (1)

X is aluminium and Y is aluminium oxide as only aluminium is used to thermite.

When aluminium is reacted with oxygen it forms aluminium oxide.

Chemical reaction:

(i)Al_{2}O_{3}+HCl\rightarrow AlCl_{3}+H_{2}O

(ii)Al_{2}O_{3}+2 NaOH \rightarrow 2 NaAlO_{2}+H_{2}O

Posted by

Sumit Saini

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