Properties of Carbon Compounds
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Questions and Answers

What do the low melting and boiling points of carbon compounds, as compared to ionic compounds, suggest about the forces of attraction between the molecules?

  • The forces of attraction between the molecules are very weak. (correct)
  • The forces of attraction between the molecules are strong.
  • The forces of attraction between the molecules are covalent in nature.
  • The forces of attraction between the molecules are electrostatic in nature.
  • Based on the information provided, why are most carbon compounds poor conductors of electricity?

  • They have high boiling points.
  • They have strong metallic bonds.
  • They do not form ions in their bonding. (correct)
  • They have no valence electrons available for conduction.
  • How is the reactivity of elements explained based on their tendency to attain a completely filled outer shell?

  • By sharing electrons with adjacent elements.
  • By increasing the number of shells.
  • By forming ionic bonds with other elements.
  • By gaining or losing electrons from the outermost shell. (correct)
  • What determines the combining capacity of elements, as learned in Class IX?

    <p>The number of valence electrons.</p> Signup and view all the answers

    Why do elements forming ionic compounds either gain or lose electrons from the outermost shell?

    <p>To attain a noble gas electron configuration.</p> Signup and view all the answers

    What problem does carbon face due to its need to gain or lose four electrons?

    <p>Difficulty in holding onto four extra electrons with six protons in the nucleus.</p> Signup and view all the answers

    Why is forming C⁴⁺ cation not a feasible option for carbon?

    <p>It would require a large amount of energy to remove four electrons.</p> Signup and view all the answers

    How does carbon overcome the challenge of gaining or losing electrons?

    <p>By sharing its valence electrons with other atoms.</p> Signup and view all the answers

    Which process leads to the formation of molecules between elements like carbon and hydrogen?

    <p>Covalent bonding through sharing of electrons</p> Signup and view all the answers

    What is the purpose of sharing electrons between two hydrogen atoms to form H₂?

    <p>To help both hydrogen atoms attain a stable electron configuration.</p> Signup and view all the answers

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