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Three faradays electricity was passed through an aqueous solution of irono (II) romide. The weight of iron metal (at. At.=56) deposited at the cathode (in gm) isA. 56B. 84C. 112D. 168 |
Answer» Correct Answer - B `Fe^(2+)+2e^(-)toFe,E_(Fe)=(56)/(2)=28` `W_(Fe)=E_(Fe)xx"Number of faraday"=28xx3=84gm` |
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