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Byju's Answer
Standard XII
Chemistry
Oxides and Oxoanions
Chemically ma...
Question
Chemically magnetite is
F
e
2
O
3
A
True
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B
False
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Solution
The correct option is
A
True
Ferric oxide is a inorganic compound.
It is a magnetic substance.
It is naturally found in the mineral magnetite.
Ferric oxide is chemically represented as
F
e
2
O
3
.
Hence, the statement is true.
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Similar questions
Q.
F
e
2
O
3
+
3
C
O
→
2
F
e
+
3
C
O
2
F
e
O
+
C
O
→
F
e
+
C
O
2
△
r
H
=
−
26
k
J
△
r
H
=
−
16
k
J
Find
△
H
of reaction
F
e
2
O
3
+
C
O
→
2
F
e
O
+
C
O
2
△
r
H
=
?
Q.
F
e
2
O
3
+
2
A
l
→
A
l
2
O
3
+
2
F
e
The above reaction is an example of a :
Q.
List I
List II
A. Calcination
a.
2
C
u
2
S
+
3
O
2
→
2
C
u
2
O
+
2
S
O
2
B. Roasting
b.
F
e
2
O
3
⋅
n
H
2
O
→
F
e
2
O
3
+
n
H
2
O
C. Flux
c.
C
r
2
O
3
+
2
A
l
→
A
l
2
O
3
+
2
C
r
D. Thermite
d.
S
i
O
2
+
F
e
O
→
F
e
S
i
O
3
Match the following.
Q.
\({Fe}_{2}{O}_{3}\) + \({2}{Al}\) \(\rightarrow\) \({Al}_{2}{O}_{3}\) + \({2}{Fe}\)
In the above reaction, \({Al}\) displaces \({Fe}\).
Q.
520 gm mixture of
F
e
2
O
3
and FeO reacts completely with 158 gm
K
M
n
O
4
in acidic medium. Calculate the mole % of
F
e
2
O
3
in mixture.
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