Q.

In a reaction, the ferrous (Fe2+) ion is oxidised to ferric (Fe3+) ion. The equivalent weight of the ion in the above reaction is equal to

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a

Half of the atomic weight

b

1/5 of the atomic weight

c

The atomic weight

d

Twice the atomic weight

answer is A.

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Detailed Solution

The atomic weight;

Equivalent weight = Atomic weightNo. of e lost or gained

Fe2+Fe3++e

 Equivalent weight= Atomic weight

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