Quantity of electricity required to redu...

Quantity of electricity required to reduced 0.1 mole of `Cr_(2)O_(7)^(-2)` to `Cr^(+3)` completely is

A

9650C

B

96500C

C

57900C

D

54900C

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The correct Answer is:

C

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When 0.1 mole Cr_(2)O_(7)^(-2) is oxidised then quantity of elecricity required to completely oxidise Cr_(2)O_(7_^(-2)) to Cr^(+3) is :-

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How many coulombs of electricity is required to reduce 1 mole of Cr_2O_7^(2-) in acidic medium?

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