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1 m o l each of A g N O 3 , C u S O 4 and A l C l 3 is electrolysed, Then ratio of number of faraday's required are.

Options

  1. A1 : 1 : 1
  2. B1 : 2 : 3
  3. C3 : 2 : 1
  4. D1 : 3 : 1

Correct answer

B. 1 : 2 : 3

Step-by-step solution

A g + + e – ⟶ A g C u 2 + + 2 e – ⟶ C u A l 3 + + 3 e – ⟶ A l Thus, number of faradays required by 1 m o l e a c h = 1 : 2 : 3 .

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