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 (A)</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 (D)</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 (D)</p> Signup and view all the answers

What is the bond angle of a sp3 hybridized carbon?

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

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

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

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

<p>sp2 (A)</p> Signup and view all the answers

What is the geometry around a sp2 hybridized carbon atom?

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

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

<p>4 (C)</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 (D)</p> Signup and view all the answers

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