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How many grams of I2 are present in a so...

How many grams of `I_2` are present in a solution which require 40 ml of 0.11 N `Na_2 S_2 O_3` to react with it ?
`S_2 O_3^(2-) + I_2 to S_4 O_6^(2-) + 2I^(-)`

A

12.7 g

B

25.4 g

C

0.558 g

D

4.25 g

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The correct Answer is:
C
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