Question

equivalent weight of iron in fe2o3 will be a) 18.68 b)28 c)56 d)112.0
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Answer 1

Answer:

Option A). 18.68

ExplanaTion:

We know that,

Atomic mass of iron = 56 amu

Oxidation state of Fe in Fe2O3 would be :

2x + 3(-2) = 0

→ 2x - 6 = 0

→ 2x = 6

→ x = 6/2

→ x = 3

Now, we also know that,

Equivalent weight = Atomic mass/oxidation state

→ Equivalent weight = 56/3

→ Equivalent weight = 18.68

Hence, option A) 18.68 is correct.

Answer 2

Answer:

Atomic mass of Fe=56amu

Oxidation state of Fe in Fe2O3= 3

Equivalent mass =Atomic mass/Valency =56/3= 18.68

Ihope this answer is helpful to you friends