The equivalent weight of iron in F e 2 O 3 would be -A- 18-6B- 26-66C- 56D- 112

The correct option is A 18.6The oxidation state (or valency) of Fe in Fe2O3 is +3.It means that 3 moles of electrons are required to reduce Fe3+ to Fe. Therefo ...

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Standard XII

Chemistry

Ion Electron Method

The equivalen...

Question

The equivalent weight of iron in $F e_{2} O_{3}$ would be -

18.6

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26.66

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112

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Solution

The correct option is A 18.6
The oxidation state (or valency) of Fe in Fe₂O₃ is +3.It means that 3 moles of electrons are required to reduce Fe³⁺ to Fe.
Therefore, the equivalent weight of iron in Fe₂O_{3 is}55.8 / 3 = 18.6
Let assume the valency of Fe in Fe₂O₃ is X.
Then, 2X-(2 x 3) =0
X = 3

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The equivalent weight of iron in Fe2O3 would be -

The correct option is A 18.6The oxidation state (or valency) of Fe in Fe2O3 is +3.It means that 3 moles of electrons are required to reduce Fe3+ to Fe. Therefore, the equivalent weight of iron in Fe2O3 is 55.8 / 3 = 18.6 Let assume the valency of Fe in Fe2O3 is X. Then, 2X-(2 x 3) =0 X = 3

The equivalent weight of iron in $F e_{2} O_{3}$ would be -