Hybridization and Molecular Geometry

Hybrid orbitals in _______________ molecules like methane are the combination of the 2s and three 2p orbitals on the central atom so that atoms can be as far apart as possible.

Which of the following are true about the molecule ammonia?

• The electron domain geometry is trigonal planar.

• The molecular geometry is trigonal planar.

• The electron domain geometry is tetrahedral.

• The molecular geometry is trigonal pyramidal.

• There is a lone pair on the central atom.

Which is true about the molecule benzene?

• There are 3 pi bonds.

• The pi bond electrons are delocalized.

• It is a zigzag ring shape.

• It is a planar ring shape.

• The sigma bonds are delocalized.

What takes up the most space around a central atom?

• Pi bonds

• Lone Pairs

• Sigma Bonds

• sp3 hybrid orbitals

The central atom with octahedral geometry has six bonding orbitals which include (check all that are added together):

• one s orbital

• three p orbitals

• one p orbital

• one d orbital

• two d orbitals

The sulfate ion (SO₄)^-2 has what molecular geometry?

• linear

• trigonal planar

• trigonal pyramidal

• tetrahedral

• square planar

In the fake compound ZX₃, Z has a lone pair. What is the geometry around Z?

• trigonal planar

• trigonal pyramidal

• tetrahedral

In the compound MX5, there are no lone pairs on the central atom, M. What is the molecular geometry?

• trigonal planar

• trigonal pyramidal

• octahedral

• tetrahedral

• trigonal bipyramidal

The fake compound LX₃ has 2 lone pairs. What is its molecular geometry?

• Trigonal planar

• Trigonal bipyramidal

• T shaped

• See-Saw

Which are true about the compound water?

• Electron domain geometry is bent.

• Molecular geometry is bent.

• Since water has two similar bonds, it is nonpolar.

• Since water has a net partial positive and partial negative side, it is polar.

• Molecular geometry is linear because there are only 2 atoms.