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Byju's Answer
Standard XII
Chemistry
Sulphur
Sulphur prese...
Question
Sulphur present in an organic compound is detected by treating the sodium extract with____________.
A
potassium ferricyanide
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B
potassium ferrocyanide
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C
sodium nitroprusside
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D
ammonium thiocyanate
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Solution
The correct option is
C
sodium nitroprusside
S
2
−
+
[
F
e
(
C
N
)
5
N
O
]
2
−
Nitroprusside ion
⟶
[
F
e
(
C
N
)
5
N
O
S
]
4
−
violet color
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