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Questions and Answers

What percentage of the total assessment does the written exam contribute?

  • 25%
  • 10%
  • 50% (correct)
  • 15%

Which statement best describes organic chemistry?

  • It involves only the physical properties of carbon compounds.
  • It exclusively studies inorganic compounds.
  • It focuses solely on the reactions of metals.
  • It is the study of the structure, properties, and reactions of carbon-containing compounds. (correct)

Which atomic principle states that a maximum of two electrons can occupy each atomic orbital?

  • Aufbau Principle
  • Octet Rule
  • Hund's Rule
  • Pauli Exclusion Principle (correct)

What is the correct definition of isotopes?

<p>Atoms with the same atomic number but different mass numbers due to differing neutron counts. (C)</p> Signup and view all the answers

Which shell in an atom has only an s atomic orbital?

<p>First shell (B)</p> Signup and view all the answers

Which of the following options correctly states the position of the atomic orbitals in shells?

<p>Higher numbered shells contain a mix of s, p, and d orbitals. (A)</p> Signup and view all the answers

What is the primary focus of the study of properties in organic chemistry?

<p>Both physical and chemical properties of organic matter (A)</p> Signup and view all the answers

In the context of electron distribution, which statement is true regarding energy levels?

<p>The first shell has the lowest energy among the atomic orbitals. (B)</p> Signup and view all the answers

What does Hund’s rule state regarding the occupation of degenerate orbitals?

<p>Electrons will occupy empty orbitals before pairing up to minimize electron repulsion. (A)</p> Signup and view all the answers

What is the shape of an s-orbital?

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

According to G.N. Lewis, how does an atom achieve stability?

<p>By having eight electrons in its outer shell or a filled for stability. (D)</p> Signup and view all the answers

What characterizes an ionic bond?

<p>It results from the electrostatic attraction between oppositely charged ions. (C)</p> Signup and view all the answers

What defines a polar covalent bond?

<p>Unequal sharing of electrons due to differences in electronegativity. (B)</p> Signup and view all the answers

Which of these elements would have a completely filled outer electron shell?

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

Which of the following statements is true about covalent bonds?

<p>They result from the sharing of valence electrons between atoms. (B)</p> Signup and view all the answers

What is electronegativity?

<p>The tendency of an atom to attract bonding electrons toward itself. (D)</p> Signup and view all the answers

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