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Tardigrade
Question
Chemistry
A violet colour compound is formed in detection of S in a compound
Q. A violet colour compound is formed in detection of
S
in a compound
1515
248
Rajasthan PMT
Rajasthan PMT 2007
Coordination Compounds
Report Error
A
N
a
4
[
F
e
(
CN
)
5
NOS
]
35%
B
N
a
3
[
F
e
(
CN
)
5
NOS
]
19%
C
N
a
2
[
F
e
(
CN
)
5
NOS
]
28%
D
N
a
2
[
F
e
(
CN
)
5
NO
]
19%
Solution:
When
N
a
2
S
is mixed with freshly prepared sodium nitroprusside, a deep violet colour indicates the presence of sulphur.
N
a
2
S
+
sodium nitroprusside
N
a
2
[
F
e
(
NO
)
(
CN
)
5
]
→
sodium thionitro prusside violet coloured complex
N
a
4
[(
F
e
(
CN
)
5
NOS
]