Valency and Bonding Electrons Quiz
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Questions and Answers

What is the valency of Carbon?

  • 1
  • 3
  • 4 (correct)
  • 2
  • How many unpaired electrons does Boron have according to its ground state electronic configuration?

  • 3
  • 1 (correct)
  • 0
  • 2
  • In terms of valency, what is the expected valence of Beryllium?

  • 1
  • 2 (correct)
  • 4
  • 3
  • What kind of bonding does Carbon mainly form in organic compounds like methane?

    <p>Covalent bonds</p> Signup and view all the answers

    Why does Carbon have 4 unpaired electrons available for bonding?

    <p>Because of its excited state with electron promotion</p> Signup and view all the answers

    What is the relationship between bond energy and the energy of orbitals forming the bond?

    <p>Equal energy orbitals form equal energy bonds</p> Signup and view all the answers

    What is the bond angle of a sp3 hybridized carbon?

    <p>109.5°</p> Signup and view all the answers

    In methane, what type of bond is formed between carbon and hydrogen atoms?

    <p>Sigma bond</p> Signup and view all the answers

    What is the hybridization state of a carbon atom that forms a double bond?

    <p>sp2</p> Signup and view all the answers

    What is the geometry around a sp2 hybridized carbon atom?

    <p>Trigonal planar</p> Signup and view all the answers

    How many sigma bonds are present in an ethene (ethylene) molecule?

    <p>4</p> Signup and view all the answers

    What type of bond is formed when carbon atoms have sp hybrid orbitals?

    <p>Pi and Sigma bonds</p> Signup and view all the answers

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