Question

Read the reaction and determine the
valency of iron.
The diatomic molecule of hydrogen reacts
with a molecule of iron oxide (FeO) and
displaces the atom of iron to form a water
molecule (H,0).​

Answer 1

Answer:

Its 2

Explanation:

See given :- H2 + FeO reacts to displace iron and form water( this statement has no work)

So as we knew that valency of oxygen is 2 and here if we do cross exchange between Fe and O then Fe must also be with valency 2 to form FeO. becoz if Fe has valency 1 then the molecule must be Fe2O and is its valency is 3 it must Fe2O3 but here it is FeO so their valency must be equal to cancel eachother. (make a diagram to understand better)

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