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8.7 gm of a sample of MnO2 (molar mass ...

8.7 gm of a sample of `MnO_2` (molar mass = 87) is used in a chemical reaction with HCl to release `Cl_2` Released `Cl_2` is used to displace `I_2` from excess of KI solution. The iodine hence released is estimated using hypo and consumes 100 ml of hypo solution.12.5 ml of same hypo solution is required for complete reaction with 25 ml of 0.5 N `I_2` solution.
Number of mili of iodine in the solution used with hypo are

A

106 g

B

10.6 g

C

5.3 g

D

53 g

Text Solution

Verified by Experts

The correct Answer is:
B
`BaO_(2)+H_(2)SO_(4)rarrBaoverset(2)(SO_(4)) + H_(2)overset(-1)(O_2)`
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