AnswersISA CA-Chemistry ATypes of Chemical Bonds

Molecular Geometry Answers

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By examining electron domain geometry, one can determine that the ammonia molecule (NH3) has

A
one sp2 orbital.
B
two sp2 orbitals.
C
three sp3 orbitals.
D
four sp3 orbitals.
2
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Two molecules have the same molecular geometry but different electron domain geometries. Which combination of atoms and lone pairs around the central atom could describe these molecules?

A
2 atoms and 2 lone pairs; 3 atoms and 0 lone pairs
B
1 atom and 3 lone pairs; 2 atoms and 1 lone pair
C
3 atoms and 1 lone pair; 3 atoms and 0 lone pairs
D
2 atoms and 2 lone pairs; 2 atoms and 1 lone pair
3

Which is most likely an example of an angular molecule?

A
NH3
B
H2O
C
SiCl4
D
H2CO
4

What is the molecular shape of HCN?

A
bent
B
linear
C
angular
D
trigonal pyramidal
5

The shape of a molecule is tetrahedral. How many lone pairs are most likely on the central atom?

A
zero
B
two
C
three
D
four
6

If a molecule has four hybrid sp3 orbitals, it can be concluded that the molecule has a

A
trigonal planar molecular geometry.
B
trigonal planar electron domain geometry.
C
tetrahedral molecular geometry.
D
tetrahedral electron domain geometry.
7

Which type of hybridization leads to a bent molecular geometry and a tetrahedral electron domain geometry?

A
sp
B
s2p
C
s2p2
D
sp3
8

The hybrid orbitals of a molecule are shown in the figure.These hybrid orbitals were most likely formed by mixing

Question illustration
A
one s orbital and one p orbital.
B
one s orbital and two p orbitals.
C
one s orbital and three p orbitals.
D
two s orbitals and two p orbitals.
9

A molecule that has a linear shape has two electron domains around the central atom. How many lone pairs of electrons are present around the central atom?

A
zero
B
one
C
two
D
three
10

The shape of a molecule is trigonal planar. How many electron domains around the central atom does this molecule most likely have?

A
zero
B
two
C
three
D
four

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Molecular Geometry Answers — ISA CA-Chemistry A