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Given E Cl 2 / Cl - o = 1 .36 V , E Cr 3 + / Cr o = - 0 .74 V E Cr 2 O 7 2 - / Cr 3 + o = 1 .33 V , E MnO 4 - / Mn 2 + o = 1 .51 V . Among the following, the strongest reducing agent is:

Options

  1. AMn 2 +
  2. BCr 3 +
  3. CCl -
  4. DCr

Correct answer

D. Cr

Step-by-step solution

According to the given data standard reduction potential of Cr is lowest. Lower the standard reduction potential, stronger the reducing agent. Therfore Cr is the strongest reducing agent.

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