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Class 12 NEET Chemistry Solutions Questions
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© examsnet.com
Question : 26
Total: 76
Which one of the following electrolytes has the same value of van't Hoff's factor (i) as that of the
Al
2
(
SO
4
)
3
(if all are 100% ionised) ?
[NEET 2015 C]
K
3
[
Fe(CN)
6
]
Al(NO
3
)
3
K
4
[
Fe(CN)
6
]
K
2
SO
4
Validate
Solution:
van’t Hoff factor of
A
l
2
(
S
O
4
)
3
→
2
A
l
+
3
+
3
S
O
4
−
2
so n = 5
K
4
[
F
e
(
C
N
)
6
]
→
4
K
+
+
[
F
e
(
C
N
)
6
]
−
4
so
n
=
5
⇒
i
=
n
=
5
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