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Oxides and Oxoanions

The molecular...

Question

The molecular formula of ferric oxide is ________ .

A

F e O

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B

F e_{2} O

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C

F e_{2} O_{3}

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D

None of these

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Solution

The correct option is C $F e_{2} O_{3}$
The molecular formula of ferric oxide (iron (III) oxide) is $F e_{2} O_{3}$ .
Ferric ion has $+ 3$ charge and oxide ion has $- 2$ charge. To maintain electrical neutrality, two ferric ions will combine with three oxide ions. The molecular formula of ferrous oxide (iron (II) oxide) is $F e O$ .

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Similar questions

1 m o l

(F e)

reacts competely with

0.65 m o l O_{2}

to give a mixture of only

F e O

F e_{2} O_{3}

. Mole ratio ferrous oxide to ferric oxide to ferric oxide is:

What is the formula of ferric oxide

1.0

mol of Fe reacts completely with

0.65

O_{2}

to give a mixture of only

F e O

F e_{2} O_{3} .

The mole ratio of ferrous oxide to ferric oxide is:

F e

reacts completely with 0.65 mole of

O_{2}

to give a mixture of only

F e O

F e_{2} O_{3}

.
The mole ratio of ferrous oxide to ferric oxide is x: y, then (x+y) is

F e

reacts completely with 0.65 mole of

O_{2}

to give a mixture of only

F e O

F e_{2} O_{3}

.
The mole ratio of ferrous oxide to ferric oxide is x: y, then (x+y) is

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