Ch. 9 Practice Questions
1. The hybridization of the
carbon
atom in the cation
C
H
3+
is:
A) sp
2
B) sp
3
C) dsp
D) sp
E) none of these
2. In the molecule C
2
H
4
the valence orbitals of the carbon atoms are assumed to be
A) not hybridized
B) sp hybridized
C) sp
2
hybridized
D) sp
3
hybridized
E) dsp hybridized
3. The hybridization of the central atom in I
3–
is:
A) sp
B) sp
2
C) sp
3
D) dsp
3
E) d
2
sp
3
4. Consider the following Lewis structure:
Which statement about the molecule is false?
A) There are 10 sigma and 2 pi bonds.
B) C-2 is sp
2
hybridized with bond angles of 120°.
C) Oxygen is sp
3
hybridized.
D) This molecule contains 28 valence electrons.
E) There are some H–C–H bond angles of about 109° in the molecule.
5. The hybridization of the central atom, Al, in AlBr
3
is
A) sp
B) sp
2
C) sp
3
D) dsp
3
E) d
2
sp
3
