A) \[Sn{{O}_{2}}\]
B) \[Si{{O}_{2}}\]
C) \[C{{O}_{2}}\]
D) \[CaO\]
Correct Answer: A
Solution :
A species is amphoteric if it is soluble in acid (behaves as a base) as well as in base (behaves as an acid).
\[\underset{Acit}{\mathop{Sn{{O}_{2}}}}\,\,+\underset{Base}{\mathop{2NaOH}}\,\xrightarrow{\,}\,N{{a}_{2}}Sn{{O}_{3}}\,+{{H}_{2}}O\]
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