Chemical Bonding and Compound Properties Quiz
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Questions and Answers

What is the formula for Potassium Chromate?

  • KCrO4
  • K2CrO4 (correct)
  • K2CrO3
  • KCrO3
  • Which transition metal compound is correctly matched with its formula?

  • Chromium (III) Chloride - CrCl2
  • Manganese (IV) Oxide - MnO
  • Copper (I) Oxide - CuO (correct)
  • Iron (II) Chloride - FeCl3
  • If a compound contains the Ammonium ion, what would be the charge if combined with the Dichromate ion?

  • +3
  • +5
  • +6 (correct)
  • +2
  • According to the Valence Shell Electron Pair Repulsion Theory (VSEPR Theory), what determines the shape of a molecule?

    <p>The number of pairs of electrons around the central atom</p> Signup and view all the answers

    Which type of bond is formed when two 2px orbitals overlap head-on in a Nitrogen molecule?

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

    What is a distinguishing characteristic between Ionic and Covalent compounds?

    <p>Melting and boiling points</p> Signup and view all the answers

    What does the difference in electronegativity values indicate about a covalent bond?

    <p>The bond is polar</p> Signup and view all the answers

    How can you determine if a liquid is polar or non-polar?

    <p>By placing a charged plastic rod near the liquid and observing the reaction</p> Signup and view all the answers

    Why is water considered an excellent solvent?

    <p>Because it is a polar molecule</p> Signup and view all the answers

    Why do transition metals exhibit variable valency?

    <p>Due to the energy difference between 4s and 3d sublevels</p> Signup and view all the answers

    Which characteristic distinguishes transition metals from other elements?

    <p>Formation of colored compounds</p> Signup and view all the answers

    Why is it significant to use Roman numerals in brackets after the name of a transition metal?

    <p>To represent the charge of the ion formed by the metal</p> Signup and view all the answers

    What is the main reason for the difference in bonding between PH3 and the other three hydrides?

    <p>PH3 has a tiny electronegativity difference, while the other three have much bigger electronegativity differences.</p> Signup and view all the answers

    Which of the following hydrides exhibit intermolecular hydrogen bonding between the molecules?

    <p>H2O</p> Signup and view all the answers

    What is the expected polarity of B-Cl bonds in boron trichloride (BCl3) and the BCl3 molecules?

    <p>B-Cl bonds are non-polar, while BCl3 molecules are polar.</p> Signup and view all the answers

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