A) it converts into stannous nitrate
B) it converts into stannic nitrate
C) it converts into metastannic acid
D) it becomes passive
Correct Answer: C
Solution :
Tin is oxidised to metastannic acid when it is treated with nitric acid. \[Sn+4HN{{O}_{3}}\xrightarrow{{}}{{H}_{2}}Sn{{O}_{3}}+4N{{O}_{2}}+{{H}_{2}}O\]
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