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Covalent Bonding review

Quiz by Dawn Johnson

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22 questions
Show answers
  • Q1
    Explain whether this diagram for CH3Cl is correct, or incorrect.
    Question Image
    Incorrect. Based on their valence electrons, only a single bond can occur between chlorine and carbon.
    Correct - this is how chlorine and carbon would bond.
    Incorrect. Based on their valence electrons, only a double bond can occur between chlorine and carbon.
    60s
  • Q2
    Which of the diatomic elements has a double bond between it's atoms?
    hydrogen
    nitrogen
    oxygen
    fluorine
    60s
  • Q3
    In a correct Lewis dot structure for water, how many unshared pairs will the water molecule have?
    0
    1
    3
    2
    60s
  • Q4
    The bond between boron (#5) and silicon (#14) is:
    ionic - an ionic compound forms
    metallic - a metal compound forms
    covalent - a molecule forms
    60s
  • Q5
    Is this C2H4 molecule correctly bonded? Defend your answer.
    Question Image
    No, carbon has 4 electrons in it's valence and can't bond 5 times.
    No, carbon will only double bond with another carbon.
    Yes, carbon has enough electrons to form a triple bond.
    Yes, all the elements are correctly bonded.
    60s
  • Q6
    Covalent bonding involves bonds between
    metals and non-metals
    non-metals and non-metals
    metals and metals
    60s
  • Q7
    A bond between nitrogen (#7) and oxygen (#8) would be
    covalent - a molecule would form
    60s
  • Q8
    Which of the following is NOT a covalent compound?
    CH3Br
    NH3
    CO2
    CaO
    60s
  • Q9
    Is this the correct Lewis dot structure for NH3? Defend your answer.
    Question Image
    No. There shouldn't be any unbonded electrons.
    Yes. Nitrogen has five valence electrons, and hydrogen can only bond singly.
    No. Another hydrogen should bond at the top of the molecule.
    Yes. Hydrogen is the central atom and can bond to other hydrogens.
    60s
  • Q10
    Which of the following is NOT an ionic compound?
    MnO2
    C2H5OH
    Mg3N2
    KCl
    60s
  • Q11
    In drawing Lewis structures, a single line (single bond) between two elements represents:
    a shared pair of electrons
    a shared electron
    an unshared pair of electrons
    a shared octet of electrons
    60s
  • Q12
    Which of the following elements CANNOT be surrounded by an octet of electrons in a correctly drawn Lewis structure?
    nitrogen
    oxygen
    carbon
    hydrogen
    60s
  • Q13
    A bond between potassium (atomic #19) and chlorine (atomic #17) would be:
    covalent bond
    metallic bond
    ionic bond
    60s
  • Q14
    Which of the following elements has the same Lewis dot structure as phosphorus?
    argon
    sulfur
    nitrogen
    silicon
    60s
  • Q15
    Covalent bonds are formed by
    losing electrons
    sharing electrons
    gaining electrons
    splitting electrons
    60s

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