math xmlns=http://www.w3.org/1998/Math/MathMLmn3/mn/math Faradays of electricity are passed thro...

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math xmlns=http://www.w3.org/1998/Math/MathMLmn3/mn/math Faradays of electricity are passed through molten \( \mathrm{Al}_{2} \mathrm{O}_{3} \), aqueous solution of \( \mathrm{CuSO}_{4} \) and molten \( \mathrm{NaCl} \) taken in three different electrolytic cells. The amount of \( \mathrm{Al}, \mathrm{Cu} \) and \( \mathrm{Na} \) deposited at the cathodes will be in the ratio
(A) math xmlns=http://www.w3.org/1998/Math/MathMLmn1/mn/math mole : math xmlns=http://www.w3.org/1998/Math/MathMLmn2/mn/math mole : math xmlns=http://www.w3.org/1998/Math/MathMLmn3/mn/math mole
(B) math xmlns=http://www.w3.org/1998/Math/MathMLmn1/mn/math mole : \( 1.5 \) mole : math xmlns=http://www.w3.org/1998/Math/MathMLmn3/mn/math mole
(C) math xmlns=http://www.w3.org/1998/Math/MathMLmn3/mn/math mole : math xmlns=http://www.w3.org/1998/Math/MathMLmn2/mn/math mole : math xmlns=http://www.w3.org/1998/Math/MathMLmn1/mn/math mole
(D) math xmlns=http://www.w3.org/1998/Math/MathMLmn1/mn/math mole : \( 1.5 \) mole : math xmlns=http://www.w3.org/1998/Math/MathMLmn2/mn/math mole
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