A) SnO2
B) CaO
C) SiO2
D) CO2
Correct Answer: A
Solution :
| [a] \[Sn{{O}_{2}}\]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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