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MHT CET20249 May 2024Evening ShiftChemistryElectrochemistryActual

What is the quantity of electricity required to produce 4.8 g of Mg (molar mass =24 ~g ~mol ⁻¹ ) from its salt solution?

Options

  1. A10 F
  2. B4 F
  3. C1 F
  4. D0.4 F

Correct answer

D. 0.4 F

Step-by-step solution

Mg ²⁺+2 e ⁻ Mg 2 F will deposit 1 mole Mg (i.e., 24 g of Mg) Hence, 0.4 F of electricity will be required to deposit 4.8 g of Mg from it's salt solution.

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