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JEEMAIN and NEET
>>
Chemistry
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Surface Chemistry
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Q)
Which of the following reactions shows the formation of positively / negatively charged sol correctly?
(a)
F
e
C
l
3
+
H
2
O
(
e
x
c
e
s
s
)
⟶
F
e
2
O
3
.
x
H
2
O
|
H
+
(b)
F
e
C
l
3
+
H
2
O
(
e
x
c
e
s
s
)
⟶
F
e
2
O
3
.
x
H
2
O
|
F
e
3
+
(c)
F
e
C
l
3
+
N
a
O
H
(
a
q
)
⟶
F
e
2
O
3
.
x
H
2
O
|
F
e
3
+
(d)
F
e
C
l
3
+
N
a
O
H
(
a
q
)
⟶
F
e
2
O
3
.
x
H
2
O
|
O
H
+
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