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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

{F e}_{2} O_{3} + 2 A l \to {A l}_{2} O_{3} + 2 F e

The above reaction is an example of a :

List I	List II
A. Calcination	a. $2 {C u}_{2} S + 3 O_{2} \to 2 {C u}_{2} O + 2 S O_{2}$
B. Roasting	b. ${F e}_{2} O_{3} \cdot n H_{2} O \to {F e}_{2} O_{3} + n H_{2} O$
C. Flux	c. ${C r}_{2} O_{3} + 2 A l \to {A l}_{2} O_{3} + 2 C r$
D. Thermite	d. $S i O_{2} + F e O \to F e S i O_{3}$

Match the following.

{F e}_{2} O_{3} + 3 C O \to 2 F e + 3 {C O}_{2} F e O + C O \to F e + {C O}_{2} △ r_{H} = - 26 k J △ r_{H} = - 16 k J

△ H

{F e}_{2} O_{3} + C O \to 2 F e O + {C O}_{2} △ r_{H} = ?

1.5 g m

{S i O}_{2}

{F e}_{2} O_{3}

on very strong heating leave a residue weighting

1.46 g m

. The reaction responsible for loss of weight is

{F e}_{2} O_{3} (s) ⟶ {F e}_{3} O_{4} (s) + O_{2} (g)

What is the percentage by mass of

{F e}_{2} O_{3}

in original sample?

F e O

2

V O

5.75

{F e}_{2} O_{3}

is (as nearest integer) :

V O + {F e}_{2} O_{3} \to F e O + V_{2} O_{5}

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