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Question

Action of concentrated nitric acid on metallic tin produces:

A
stannous nitrite
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B
stannous nitrate
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C
stannic nitrate
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D
stannic oxide
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Solution

The correct options are
A stannous nitrate
C stannic oxide
The action of nitric acid on the metallic tin is different in different conditions.
In cold condition-
4Sn+10HNO34Sn(NO3)2Stannous nitrate+NH4NO3+3H2O
In boiling condition-
Sn+4HNO3SnO2Stannic oxide+4NO2+2H2O

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