Write balanced equation to convert iron to triferric tetroxide.

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

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2 F e + O_{2} \to 2 F e O

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3 F e + {4 O}_{2} \to {F e}_{3} O_{4}

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3 F e + {2 O}_{2} \to {F e}_{3} O_{4}

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Solution

The correct option is D $3 F e + {2 O}_{2} \to {F e}_{3} O_{4}$
Iron is present in its ore form magnetite. Iron reacts with oxygen in the air to form oxides and hydroxides and the most common form is iron(II,III) oxide.
The balanced equation to convert iron to triferric tetroxide is:

$3 F e + {2 O}_{2} \to {F e}_{3} O_{4}$

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Similar questions

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

2 F e (s) + O_{2} (g) ⟶ 2 F e O (s); Δ H^{o} = - 544 k J

4 F e (s) + 3 O_{2} (g) ⟶ 2 {F e}_{2} O_{; 3} (s); Δ H^{o} = - 1648.4 k J

{F e}_{3} O_{4} (s) ⟶ 3 F e (s) + 2 O_{2} (g); Δ H^{o} = + 1118.4 k J

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

{F e}_{3} O_{4}

O_{2}

Δ G = - 177 K c a l

(1) 2 F e (s) + \frac{3}{2} O_{2} (g) ⟶ {F e}_{2} O_{3} (s)

Δ G = - 19 K c a l f o r (2) {4 F e}_{2} O_{3} (s) ⟶ {3 F e}_{3} O_{4} (s)

{F e}_{3} O_{4}

F e

F e O

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

{F e}_{3} O_{4}

C u + H_{2} S O_{4} \to C u S O_{4} + {S O}_{2} ↑ + H_{2} O

F e + H_{2} O \to {F e}_{3} O_{4} + H_{2} ↑

{C H}_{4} + O_{2} \to C O_{2} + H_{2} O

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