Ionic and Covalent Bonding: MCQ1
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Questions and Answers

What is an ionic bond?

  • The formation of sigma bonds between atoms
  • The unequal sharing of electrons between two atoms
  • The electrostatic force of attraction between oppositely charged ions (correct)
  • The sharing of electrons between atoms

Which type of bond is characterized by the sideways overlap of p-orbitals?

  • Pi bond (correct)
  • Sigma bond
  • Ionic bond
  • Polar covalent bond

What is the term for the number of bonds an atom of an element forms when it reacts?

  • Ionization energy
  • Valency (correct)
  • Electronegativity
  • Electron affinity

What is the electronic arrangement that atoms tend to reach when bonding occurs, according to the Octet Rule?

<p>Eight electrons in their outermost energy level (C)</p> Signup and view all the answers

Which type of bond is characterized by the unequal sharing of electrons between two atoms?

<p>Polar covalent bond (A)</p> Signup and view all the answers

What is the term for electrons that are not involved in bonding?

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

What is the primary reason why covalent compounds do not conduct electricity when molten or in solution?

<p>They do not break up to form ions (C)</p> Signup and view all the answers

What is the result of the electrostatic force of attraction between oppositely charged ions?

<p>An ionic bond (A)</p> Signup and view all the answers

Why do ionic compounds typically have high melting and boiling points?

<p>Because of the strong electrostatic force of attraction between oppositely charged ions (C)</p> Signup and view all the answers

What is the difference between σ and π bonds?

<p>σ bonds are formed by the end-on overlap of orbitals, while π bonds are formed by the sideways overlap of p-orbitals (D)</p> Signup and view all the answers

What is the result of the unequal sharing of electrons between two atoms in a covalent bond?

<p>A polar covalent bond (C)</p> Signup and view all the answers

Why do covalent compounds typically have low melting and boiling points?

<p>Because the bonds between atoms are relatively weak (B)</p> Signup and view all the answers

What is the term for the electrons that are shared in a covalent bond?

<p>Bond pairs (B)</p> Signup and view all the answers
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