1. What is the general shape of most d orbitals?
A.
Spherical
B.
Dumbbell-shaped
C.
Four-lobed or cloverleaf-shaped
D.
Cylindrical
Correct Answer:
Four-lobed or cloverleaf-shaped
2. How many d orbitals are present in a d subshell?
A.
One
B.
Three
C.
Five
D.
Seven
Correct Answer:
Five
3. Which d orbital has a distinctive shape consisting of two lobes and a doughnut-shaped ring?
A.
dxy
B.
dxz
C.
dyz
D.
dz2
Correct Answer:
dz2
4. The dxy orbital has its lobes located mainly between which axes?
A.
The x and y axes
B.
The y and z axes only
C.
The x and z axes only
D.
The positive z axis only
Correct Answer:
The x and y axes
5. The dx2-y2 orbital has its lobes directed along which axes?
A.
Between the x and y axes
B.
Along the x and y axes
C.
Along the z axis only
D.
Between the x and z axes
Correct Answer:
Along the x and y axes
6. The dxz orbital lies mainly in which coordinate plane?
A.
xy plane
B.
yz plane
C.
xz plane
D.
None of these planes
Correct Answer:
xz plane
7. The dyz orbital lies mainly in which coordinate plane?
A.
xy plane
B.
yz plane
C.
xz plane
D.
The plane perpendicular to all axes
Correct Answer:
yz plane
8. Which d orbital has lobes lying between the x and y axes?
A.
dxy
B.
dx2-y2
C.
dz2
D.
dxz
Correct Answer:
dxy
9. Which d orbital has four lobes directed along the x and y axes?
A.
dxy
B.
dyz
C.
dx2-y2
D.
dz2
Correct Answer:
dx2-y2
10. How many lobes are clearly seen in each of the dxy, dxz, and dyz orbitals?
A.
One
B.
Two
C.
Four
D.
Six
Correct Answer:
Four
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