Number of faradays required to convert $1$ mole of $C r_{2} O_{7}^{2 -}$ into $C r^{3 +}$ ions is _______ .

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none of these

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Solution

The correct option is C 3
Change of O.S $= 6 - 3 = 3$
$∴$ $3 F$ of charge is required to convert $1$ mole of $C r_{2} O_{7}^{2 -}$ .

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1

C r_{2} O_{7}^{2 -}

C r^{3 +}

C r_{2} O_{7}^{2 -}

C r^{3 +}

C r_{2} O_{7}^{2 -}

C r^{3 +}

1 m o l

C r_{2} O_{7}^{2 -}

C r^{3 +}

C r_{2} O_{7}^{2 -} t o C r^{3 +}

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