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Based on data given below for the electrode potential, reducing power of F e 2 + , A l and B r - will increase in the order B r 2 ( a q ) + 2 e - → 2 B r - ( a q ) ; E o = + 1.08 V A l 3 + ( a q ) + 3 e - → A l ( s ) ; E o = - 1.66 V F e 3 + ( a q ) + e - → F e + 2 ( a q ) ; E o = + 0.77 V

Options

  1. AB r - < F e 2 + < A l
  2. BA l < B r - < F e 2 +
  3. CF e 2 + < A l < B r -
  4. DA l < F e 2 + < B r -

Correct answer

A. B r - < F e 2 + < A l

Step-by-step solution

Reducing power, i.e. the tendency to lose electrons increases as the reduction potential decreases.

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