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NEET2020ChemistryElectrochemistryActual

The number of Faradays(F) required to produce 20   g of calcium from molten CaCl 2 (Atomic mass of Ca = 40   g   mol – 1 ) is

Options

  1. A2
  2. B3
  3. C4
  4. D1

Correct answer

D. 1

Step-by-step solution

Ca + 2 + 2 e - → Ca s Valency Factor = 2 As per Faraday's 1 st law, Charge passed in Faraday = Number of gram equivalent of product. = 20 40 × 2 = 1 F

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