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Chemistry
In sulphur detection of an organic compound, sodium nitropruside solution is added to sodium extract. Formation of violet colour is due to:
Q. In sulphur detection of an organic compound, sodium nitropruside solution is added to sodium extract. Formation of violet colour is due to:
1305
182
Uttarkhand PMT
Uttarkhand PMT 2005
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A
N
a
3
F
e
(
CN
)
6
B
N
a
3
[
F
e
(
CN
)
5
NOSN
a
]
C
N
a
3
[
F
e
(
CN
)
5
NS
]
D
F
e
(
CNS
)
3
Solution:
If sulphur is present in the organic compound, sodium fusion will convert it into sodium sulphide. Sulphide ions are readily identified using sodium nitroprusside.
N
a
+
S
→
N
a
2
S
N
a
2
S
+
N
a
2
[
F
e
(
CN
)
5
NO
]
→
N
a
4
[
F
e
(
CN
)
5
NOS
]