Bonding: Question Preview (ID: 4734)

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The degree of polarity of a chemical bond in a molecule of a compound can be predicted by determining the difference in the
a) melting points b) electronegativities c) atomic masses d) atomic radii
What is the total number of pairs of electrons shared in a molecule of N2?
a) 1 b) 2 c) 3 d) 4
Which type of bond results when one or more valence electrons are transferred from one atom to another?
a) covalent b) hydrogen c) ionic d) metallic
Which two substances are covalent compounds?
a) C6H12O6(s) and KI(s) b) C6H12O6(s) and HCl(g) c) KI(s) and NaCl(s) d) NaCl(s) and HCl(g)
Which compound contains both ionic and covalent bonds?
a) CaCO3 b) KI c) H2O d) MgF2
Which molecule contains a nonpolar covalent bond?
a) CO2 b) Br2 c) CCl4 d) CO
What occurs when an atom of chlorine and an atom of hydrogen become a molecule of hydrogen
a) A bond is broken and energy is absorbed b) A bond is broken and energy is released c) A bond is formed and energy is absorbed d) A bond is formed and energy is released
Which compound contains ionic bonds?
a) NO b) NO2 c) CaO d) CO2
21Which of the following elements has the highest electronegativity?
a) Cl b) K c) Al d) Ca
Which type of bond involves the sharing of electrons
a) Covalent b) Ionic c) Hydrogen d) Metallic
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