Lithium
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Questions and Answers

Which statement about lithium peroxide and lithium superoxide is true?

  • They do not exist. (correct)
  • They can be easily synthesized in a laboratory setting.
  • They are commonly found in nature
  • They are both highly reactive compounds.
  • Which of the following is true about the chemical properties of BeO?

  • It reacts with water to form M(OH)2 like the other MO oxides.
  • It is an ionic compound
  • It dissolves in strongly acidic solutions to form [Be(OH)4]2-.
  • It does not react with water. (correct)
  • Which alkali metal salt is least likely to be anhydrous?

  • Sodium
  • Lithium
  • Rubidium (correct)
  • Potassium
  • Which of the following statements is true about BeCl2 and BeF2 in the molten state?

    <p>They are covalent substances.</p> Signup and view all the answers

    Which statement about lithium's ionization energy is true?

    <p>It has the highest ionization energy among alkali metals.</p> Signup and view all the answers

    What is the reason behind the unusual chemical behavior of Be?

    <p>Its high charge density.</p> Signup and view all the answers

    Study Notes

    1. Lithium does not form peroxide or superoxide.
    2. Lithium ion has high polarizing power due to its small size.
    3. Lithium peroxide and lithium superoxide do not exist.
    4. Majority of alkali metal salts are anhydrous.
    5. Lithium and sodium salts are most likely to exist as hydrated salts.
    6. Lithium has an unusually large hydration energy.
    7. Lithium ion is hard to reduce but easy to oxidize.
    8. The small size of the Li+ ion allows a close approach to surrounding water molecules.
    9. Lithium has the highest first ionization energy.
    10. Oxidation to produce Li+(aq) is different from ionization energy.

    MCQ Questions:

    1. Why does lithium not form peroxide or superoxide? A) Due to its high polarizing power B) Due to its large size C) Due to its low polarizing power D) Due to its large electron cloud

    Answer: A

    1. Why are lithium and sodium salts most likely to exist as hydrated salts? A) Due to their small size B) Due to their large size C) Due to their high polarizing power D) Due to their low polarizing power

    Answer: A

    1. Why is lithium ion hard to reduce but easy to oxidize? A) Due to its large size B) Due to its small size C) Due to its low polarizing power D) Due to its high polarizing power

    Answer: D

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    Description

    Test your knowledge on the unique properties of lithium with this quick quiz! From its high polarizing power to its unusually large hydration energy, this quiz covers the essential properties of lithium that make it stand out from other alkali metals. Whether you're a chemistry student or just curious about the element, this quiz will challenge your understanding of lithium and its behavior in various chemical reactions. Take the quiz now and see how well you know this fascinating element!

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