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,sp, linear Which is the correct hybridization state and geometry for the carbon atom in HCN?
sp, linear
sp2, trigonal planar
sp3, tetrahedral
None of the above
This structure has one positive charge and one negative The following structure has been drawn without formal charges. Which statement
charge. describes the missing formal charge(s)?
This structure has one positive charge and one negative charge.
This structure has one positive charge but no negative charges.
This structure has one negative charge but no positive charges.
This structure has no formal charges.
sp2-sp3 The indicated σ bond results from the overlap of which orbitals?
sp2-sp2
sp-sp3
sp-sp2
sp2-sp3
Trigonal planar Of the following molecular geometries, which has the largest bond angle?
Pyramidal
Tetrahedral
Trigonal planar
Bent
13 How many σ bonds are in the following compound?
8
9
13
14
Y, because the dipole moments do not fully cancel. Which compound has the higher boiling point? Explain briefly.
X, because the dipole moments are far apart.
Y, because the dipole moments do not fully cancel.
Y, because it is less branched.
X, because it is more linear.
, 6 How many hydrogen atoms are in the compound represented by the following bond-
line drawing?
5
6
7
8
D) 9 5 The compound represented by the following bond-line drawing has how many
carbon atoms and how many π bonds?
C atoms
π bonds
(a)
10 6
(b)
10 5
(c)
96
(d)
95
C All of the following are significant resonance structures of the benzyl carbocation,
EXCEPT:
A Which of the following resonance structures is the most significant contributor to the
resonance hybrid?
D Which of the following structures exhibits an sp3-hybridized nitrogen atom?
C Which is a bond-line drawing of (CH3)2CHCH2OC(CH3)3?