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Byju's Answer
Standard XII
Chemistry
Factors Affecting Corrosion
The tarnishin...
Question
The tarnishing of silver ornaments in the atmosphere is due to the formation of:
A
A
g
2
O
,
A
g
2
S
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B
A
g
N
O
3
,
A
g
2
S
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C
A
g
O
H
,
A
g
2
C
O
3
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D
A
g
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Solution
The correct option is
A
A
g
2
O
,
A
g
2
S
In the air, a silver object tarnishes owing to the reaction of silver with hydrogen sulfide and oxygen.
Reaction:
A
g
+
a
i
r
(
O
2
+
H
2
S
)
→
A
g
2
O
+
A
g
2
S
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0
Similar questions
Q.
The tarnishing of silver ornaments in atmosphere is due to:
Q.
A
g
2
S
is soluble in
N
a
C
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due to formation of :
Q.
Question 13
Silver articles become black on prolonged exposure to air. This is due to the formation of:
(a)
Ag
3
N
(b)
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(c)
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S
(d)
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and
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Q.
A
g
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S
+
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a
C
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Z
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⟶
A
g
+
This method of extraction of Ag by the complex formation and then its displacement is called:
Q.
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g
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S
+
N
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C
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⟶
A
g
This method of extraction of Ag by complex formation and then its displacement is called_______.
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