A) \[Sn{{O}_{2}}\]
B) \[CaO\]
C) \[Si{{O}_{2}}\]
D) \[C{{O}_{2}}\]
Correct Answer: D
Solution :
\[Sn{{O}_{2}}\]is an amphoteric oxide because it reacts with acids as well as bases to form corresponding salts. \[Sn{{O}_{2}}+4HCl\xrightarrow[{}]{{}}SnC{{l}_{4}}+2{{H}_{2}}O\] \[Sn{{O}_{2}}+2NaOH\xrightarrow[{}]{{}}\underset{sod.\,s\tan nate}{\mathop{N{{a}_{2}}Sn{{O}_{3}}+}}\,{{H}_{2}}O\]
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