Symmetry and Point Group

What is the point group of water?

• C2v

• C2h

• D2v

• D2h

What is the point group of this molecule?

• D3d

• D3

• S6

• C3

What is the point group of this molecule?

• D4

• C4v

• D4d

• S8

How many classes in the point group C3v?

What is the order of a water molecule?

What is/are the group that has a high symmetry?

• C∞h

• Td

• Oh

• Ih

What is the answer for the given matrix? (Answer format: 1st row: 1st column, 2nd column

• -19 -9

  -28 4

• -18 5

  0 4

• -19 9

  -28 4

• 18 -5

  0 -4

What is the point group of naphthalene?

• C2h

• D2h

• C2

• D2d

BH3 and NH3 possess trigonal planar and trigonal pyramidal structures, respectively. What symmetry

elements possessed by both molecules?

• Vertical sigma plane

• Inversion point

• S6 rotoreflection

• Horizontal sigma plane

The ___ operation takes a point through the center of symmetry of the molecule to an equal distance on the other side.