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Byju's Answer
Standard XII
Chemistry
Van't Hoff Factor
Choose the co...
Question
Choose the correct statement(s) :
(Assume 100% ionisation)
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Solution
van't Hoff factor
(
i
)
=
Number of molecules (actual)
Number of molecules (expected)
For
K
C
l
:
K
C
l
(
a
q
.
)
→
1
K
+
+
1
C
l
−
i
=
2
K
2
S
O
4
(
a
q
.
)
→
2
K
+
+
1
S
O
2
−
4
i
=
3
Options (a) and (d) are correct.
Theory :
Affect of dissociation :
No of solute particles increase
Colligative property (CP) increases
Molar mass (MM) of solute decreases
Hence, Observed MM < Expected MM
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Van't Hoff Factor
Standard XII Chemistry
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