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Valency and Oxidation State

The oxidation...

Question

The oxidation state of the metal atom is zero in:

A

ferrous sulphate

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B

ferric sulphate

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C

rust

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D

iron carbonyl

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Solution

The correct option is C iron carbonyl
In iron carbonyl, the oxidation state of metal is zero. In all other given compounds, metal has positive oxidation state.

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