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Byju's Answer
Standard XII
Chemistry
Coordination Complexes
Ferric alum h...
Question
Ferric alum has the composition
(
N
H
4
)
2
S
O
4
.
F
e
2
(
S
O
4
)
3
.
x
H
2
O
.
Find the value of
x
.
A
7
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B
24
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C
6
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D
15
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Solution
The correct option is
C
6
Ferric
(
N
H
4
)
2
S
O
4
.
F
e
2
(
S
O
4
)
3
.24
H
2
O
Suggest Corrections
0
Similar questions
Q.
How many moles of ferric alum
(
N
H
4
)
2
S
O
4
.
F
e
2
(
S
O
4
)
3
.24
H
2
O
can be made from the sample of
F
e
containing
0.0056
g of it?
Q.
25
mL of a solution of ferric alum,
F
e
2
(
S
O
4
)
3
.
(
N
H
4
)
2
.
S
O
4
.24
H
2
O
containing
1.25
g of the salt was boiled with iron when the reaction occurs as:
F
e
+
F
e
2
(
S
O
4
)
3
⟶
3
F
e
S
O
4
The unreacted iron was filtered off and solution treated with
0.107
N
K
M
n
O
4
in acid medium.
What is titre value of
F
e
in mL as nearest integer?
Q.
100
mL solution of ferric alum,
F
e
2
(
S
O
4
)
3
.
(
N
H
4
)
2
S
O
4
.24
H
2
O
(molecular weight
=
964
g/mol) containing
2.41
g of salt was boiled with
F
e
when the reaction,
F
e
+
F
e
2
(
S
O
4
)
3
→
3
F
e
S
O
4
, takes place. The unreacted iron was filtered off and the solutions was titrated with
M
60
K
2
C
r
2
O
7
in acidic medium.
Moles of
F
e
S
O
4
formed when
C
u
reacts with
F
e
2
(
S
O
4
)
3
is :
Q.
A
l
2
(
S
O
4
)
3
.
x
H
2
O
has
8.20
%
A
l
by mass. The value of
x
/
3
is
_________.
Q.
Ferric alum gives red color with
N
H
4
S
C
N
due to
formation of:
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