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When HCl reacts with finely powdered iro...

When HCl reacts with finely powdered iron, it forms ferrous chloride and not ferric chloride, why?

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Reaction of iron with hydrochloric acid produces ferrous chloride and liberate hydrogen.
`Fe + 2HCl to FeCl_2 + H_2`.
This liberated hydrogen prevents the formation of ferric chloride.
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