Chemistry Question on Some basic concepts of chemistry

Question

Identify the element that forms amphoteric oxide.

Answer 1

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