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Nitrates

Action of con...

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-
$4 S n + 10 H N O_{3} ⟶ 4 S n (N O_{3})_{2} S t a n n o u s n i t r a t e + N H_{4} N O_{3} + 3 H_{2} O$
In boiling condition-
$S n + 4 H N O_{3} ⟶ S n O_{2} S t a n n i c o x i d e + 4 N O_{2} + 2 H_{2} O$

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