What happens when iron reacts with a concentrated nitric acid?

Ferric nitrite is formed.

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Ferric nitrate is formed.

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Ferrous hydroxide is formed.

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Ferric oxide is formed.

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Solution

The correct option is B
Ferric nitrate is formed.

Iron reacts with concentrated nitric acid to form ferric nitrate, water and nitrogen dioxide gas

$F e + 6 H N O_{3} \to F e (N O_{3})_{3} + 3 H_{2} O + 3 N O_{2}$

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1 m o l

of iron

(F e)

reacts competely with

0.65 m o l O_{2}

to give a mixture of only

F e O

and

F e_{2} O_{3}

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

Q. Which precipitate is formed when ferric chloride reacts with caustic soda?

[1 mark]

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What happens when iron reacts with a concentrated nitric acid?

The correct option is B Ferric nitrate is formed. Iron reacts with concentrated nitric acid to form ferric nitrate, water and nitrogen dioxide gas Fe+6HNO3→Fe(NO3)3+3H2O+3NO2

The correct option is B
Ferric nitrate is formed.

Iron reacts with concentrated nitric acid to form ferric nitrate, water and nitrogen dioxide gas

$F e + 6 H N O_{3} \to F e (N O_{3})_{3} + 3 H_{2} O + 3 N O_{2}$