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Choose correct statement:

Correct answer: A. Reducing power in aqueous solution is maximum for Lithium metal.

  • A. Reducing power in aqueous solution is maximum for Lithium metal.
  • B. electron affinity order O+<O<O-22<O-2
  • C. pH of aqueous solution LiCl>BeCl2>MgCl2>AlCl3

Explanation

The correct answer is Option A. Lithium metal has the maximum reducing power in aqueous solutions due to its position at the top of the electrochemical series and its strong tendency to donate electrons. Option B discusses the electron affinity order for different ions and atoms, not related to the reducing power. Option C provides incorrect information about the pH of aqueous solutions for the given chlorides.

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About Periodic Properties and Trends

Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.

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