1. Which d orbital is oriented in the yz plane?
A.
dxy
B.
dxz
C.
dyz
D.
dz2
Correct Answer:
dyz
2. Which d orbital has lobes pointing directly toward the positive and negative x and y directions?
A.
dxy
B.
dxz
C.
dyz
D.
dx2-y2
Correct Answer:
dx2-y2
3. What is the main difference in shape between dz2 and the other four d orbitals?
A.
dz2 is spherical
B.
dz2 has two lobes and a ring, while the others have four lobes
C.
dz2 has no lobes
D.
dz2 is triangular
Correct Answer:
dz2 has two lobes and a ring, while the others have four lobes
4. Which orbital has four lobes arranged between the x and z axes?
A.
dxy
B.
dxz
C.
dyz
D.
dx2-y2
Correct Answer:
dxz
5. Which statement correctly describes the shapes of d orbitals?
A.
All five d orbitals are spherical
B.
All five d orbitals have identical dumbbell shapes
C.
Four d orbitals are cloverleaf-shaped, while dz2 has two lobes and a ring
D.
All five d orbitals are ring-shaped
Correct Answer:
Four d orbitals are cloverleaf-shaped, while dz2 has two lobes and a ring
6. What is the general shape of most d orbitals?
A.
Spherical
B.
Dumbbell-shaped
C.
Cloverleaf-shaped
D.
Circular ring-shaped
Correct Answer:
Cloverleaf-shaped
7. How many d orbitals are present in a d subshell?
A.
One
B.
Three
C.
Five
D.
Seven
Correct Answer:
Five
8. Which d orbital has two lobes along the z-axis and a doughnut-shaped ring around the nucleus?
A.
dxy
B.
dxz
C.
dyz
D.
dz2
Correct Answer:
dz2
9. The four lobes of the dxy orbital lie between which axes?
A.
The x- and y-axes
B.
The y- and z-axes
C.
The x- and z-axes
D.
The positive and negative z-axes
Correct Answer:
The x- and y-axes
10. Along which axes are the lobes of the dx2-y2 orbital directed?
A.
Between the x- and y-axes
B.
Along the x- and y-axes
C.
Between the y- and z-axes
D.
Along only the z-axis
Correct Answer:
Along the x- and y-axes
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