Gen Chem Unit 3 Shapes and Polarity

HCN is a linear molecular geometry. What is the polarity of HCN molecule?

• Polar molecule

• Non-polar molecule

A molecular geometry with 3 bonding pairs is

• Trigonal pyramidal

• Trigonal planar

• Trigonal bipyramidal

• T-shaped

Does the following reference Polar, Nonpolar, or both:

"electronegativity values are the same"?

• Polar

• Nonpolar

• Both

The two (2) factors that determine if a molecule is Polar or Non-polar:

• The atoms's ionization energy

• the type of atoms in the molecule

• The atom's oxidation number

• the shape of the molecule

A molecule is polar when

• it is asymmetrical with at least one polar bond

• it is symmetrical

• it is asymmetrical

• it is symmetrical with at least one polar bond

CCl₄ has polar bonds but is a non polar molecule. Why?

• bond polarity exist between atoms
• bond polarity between atoms cancel
• dipole moment exist between atoms in molecule
• difference in EN between C and Cl

Choose the correct shape for this molecule:

• Trigonal planar
• Trigonal pyramidal
• Tetrahedral
• Linear

Choose the correct shape for this molecule:

• Trigonal planar
• Trigonal pyramidal
• Bent
• Linear

Choose the correct shape for this molecule:

• Bent
• Trigonal pyramidal
• Trigonal planar
• Linear

Choose the correct shape for this molecule:

• Trigonal planar

• Linear

• Bent

• Tetrahedral