How many moles of K_(2)Cr_(2)O_(7) is reduced by 1 mole Sn^(+2) ?

1.	How many moles of K_(2)Cr_(2)O_(7) is reduced by 1 mole Sn^(+2) ?
Answer» `1/6` `1/3` `2/3` 1 Solution :

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