A) \[ZnO,{{K}_{2}}O,S{{O}_{3}}\]
B) \[ZnO,{{P}_{2}}{{O}_{5}},C{{l}_{2}}{{O}_{7}}\]
C) \[Sn{{O}_{2}},A{{l}_{2}}{{O}_{3}},ZnO\]
D) \[Pb{{O}_{2}},Sn{{O}_{2}},S{{O}_{3}}\]
E) None of the above
Correct Answer: C
Solution :
\[Sn{{O}_{2}},A{{l}_{2}}{{O}_{3}}\]and\[ZnO\]are amphoteric oxide.
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