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MHT CET202416 May 2024Evening ShiftChemistryElectrochemistryActual

What is the number of faraday required to produce 0.18 ~g aluminium at cathode during electrolysis of molten AlCl ₃ ? (Molar mass of Al =27 ~g ~mol ⁻¹ )

Options

  1. A0.02 F
  2. B0.03 F
  3. C0.25 F
  4. D0.30 F

Correct answer

A. 0.02 F

Step-by-step solution

Al ³⁺+3 e ⁺ Al _ ( s ) 1 mol of Al (27 ~g ) requires 3 F (3 moles of electrons) 0.18 ~g of Al requires = 3 0.18 27 =0.02 ~F

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