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Q.
Identify the element that forms amphoteric oxide.
MHT CETMHT CET 2018Some Basic Concepts of Chemistry
Solution:
Zn (zinc) element of forms amphoteric oxide i.e. $ZnO$. This oxide reacts with both acids and bases, exhibiting a dual behaviour. They show characteristics of both acidic as well as basic oxides
Following reaotions are given by $ZnO$
$ZnO +2 HCl \to ZnCl _{2}+ H _{2} O $
$ZnO + 8NaOH \to Na _{2 } Zn O _{2}+ H _{2} O$
Note 1 Among oxides, OO is neutral, $CaO$ is basilo and $SO_{2}$ is acidic in nature