1. Which d orbital has lobes between the y- and z-axes?
A.
dxy
B.
dx2-y2
C.
dyz
D.
dz2
Correct Answer:
dyz
2. In which plane are the lobes of the dxy orbital located?
A.
xy-plane
B.
xz-plane
C.
yz-plane
D.
A plane containing only the z-axis
Correct Answer:
xy-plane
3. Which orbital has its main lobes directed along the z-axis rather than between axes?
A.
dxy
B.
dxz
C.
dz2
D.
dyz
Correct Answer:
dz2
4. Which set contains only d orbitals with lobes between coordinate axes?
A.
dxy, dxz, dyz
B.
dx2-y2, dz2, dxy
C.
dx2-y2, dxz, dz2
D.
dz2, dyz, dx2-y2
Correct Answer:
dxy, dxz, dyz
5. Which d orbital is commonly described as having a four-lobed cloverleaf shape in the xy-plane with lobes along the axes?
A.
dxy
B.
dx2-y2
C.
dz2
D.
dyz
Correct Answer:
dx2-y2
6. Which d orbital has a four-lobed cloverleaf shape with lobes between the x- and y-axes?
A.
dx2-y2
B.
dz2
C.
dxy
D.
dxz
Correct Answer:
dxy
7. The name dx2-y2 indicates that the orbital is mainly associated with which directions?
A.
The x- and y-axes
B.
The x- and z-axes
C.
The y- and z-axes
D.
Only the z-axis
Correct Answer:
The x- and y-axes
8. Which d orbital is symmetric about the z-axis and has no four-lobed cloverleaf orientation?
A.
dxy
B.
dxz
C.
dyz
D.
dz2
Correct Answer:
dz2
9. Which two d orbitals lie in vertical planes that include the z-axis and one other coordinate axis?
A.
dxy and dx2-y2
B.
dxz and dyz
C.
dxy and dz2
D.
dx2-y2 and dz2
Correct Answer:
dxz and dyz
10. Which statement correctly describes the orientation of d orbitals?
A.
All five d orbitals point only along the z-axis
B.
All five d orbitals lie only in the xy-plane
C.
The five d orbitals have different spatial orientations
D.
Only one d orbital has a definite orientation
Correct Answer:
The five d orbitals have different spatial orientations
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