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Grade: 11
Please answer the question in image fastly..It is from redox reactions chapter class 11 chemistry I need to know the method of solving this so please help very urgent..
9 months ago

Answers : (3)

24735 Points
The equivalent weight is the gram molecular weight divided by the number of electrons lost or gained by each molecule; e.g., potassium permanganate (KMnO4) in acid solution, 158.038/5 g; potassium dichromate (K2Cr2O7), 294.192/6 g; and sodium thiosulfate (Na2S2O3·5H2O), 248.1828/1 g.In case of Sodium Thiosulfate the reation proceeds as under:I2 + 2 Na2S2O3 → Na2S4O6 + 2 NaI2 Na2S2O3 ≡ I2 ≡ Cl2 ≡ 2 eHence Na2S2O3 ≡ 1 eThus Molecular weight devded by 1 is the equivalent weight & hence both have same value
9 months ago
Vikas TU
11680 Points
Dear student 
The ans is wrongly explained, there is no relaton with the question , It is by mistakely published, Actually he was trying to give another ans. 
Please ignore,
Good Luck 
9 months ago
Gini Sharma
19 Points
In a disproportionation reaction nf is given by:
So here, nf of s4o6-2 is 2 and nf of s22- is 6
Therefore the nf of s2o3-2 is 6/5
Dividing the molecular mass of s2o3-2 by nf we get the equivalent mass
9 months ago
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