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30 mL of K(2)Cr(2)O(7) liberated iodine ...

30 mL of `K_(2)Cr_(2)O_(7)` liberated iodine from KI solution when the iodine was titrated with hypo solution `(N//20)`, the titre value was 45 mL. Find the concentration of `K_(2)Cr_(2)O_(7)` in g per litre.

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The correct Answer is:
3.675 g
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