`0.2828g` of iron wire was dissolved in excess dilute `H_(2)SO_(4)` and the solution was made up to `100 mL`. `20mL` of this sol

`0.2828g` of iron wire was dissolved in excess dilute `H_(2)SO_(4)` and the solution was made up to `100 mL`. `20mL` of this solution required `30mL` of `N//30 K_(2)Cr_(2)O_(7)` doluyion for exact oxidation. Calculate `%` purity of `Fe` in wire.

`0.2828g` of iron wire was dissolved in excess dilute `H_(2)SO_(4)` and the solution was made up to `100 mL`. `20mL` of this solution required `30mL`

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