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Given that E ° values of A g + / A g , K + / K , M g 2 + / M g and C r 3 + / C r are 0.80 V , – 2.93 V , – 2.37 V and – 0.74 V respectively. Therefore the order for the reducing power of the metal is -

Options

  1. AA g > C r > M g > K
  2. BA g < C r < M g < K
  3. CA g > C r > K > M g
  4. DC r > A g > M g > K

Correct answer

B. A g < C r < M g < K

Step-by-step solution

More the negative E ° value, larger the reducing power of the metal.

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