WorksheetsAP Chemistry Ch. 8, 9, 10 Practice Test
Total questions: 15
Worksheet time: 15mins
What is the molecular geometry of CO32-?
trigonal planar
trigonal pyramidal
tetrahedral
bent
Which of the following has a zero dipole moment?
NH3
NO2
PF5
HCN
Which of the following compounds would have the highest lattice energy?
LiF
MgCl2
CaBr2
C2H6
What type of structure does the XeOF2 molecule have?
trigonal pyramidal
tetrahedral
T-shaped
octahedral
When N, P, and As bond to Cl, what is the correct order of the bonds in terms of increasing polarity?
N-Cl, P-Cl, As-Cl
P-Cl, N-Cl, As-Cl
As-Cl, N-Cl, P-Cl
As-Cl, P-Cl, N-Cl
The bond angle in H2Se is about:
120°
60°
180°
109°
What is the hybridization of the center carbon atom?
sp
sp2
sp3
sp4
How many sigma and pi bonds are in this molecule?
9 sigma, 2 pi
7 sigma, 2 pi
8 sigma, 1 pi
7 sigma, 1 pi
The hybridization of the central atom in NO3- is:
sp
sp2
sp3
dsp3
Would acetone (the chemical above) be soluble in water?
Yes, because it has a double bond
Yes, because its center carbon atom is sp2 hybridized
No, because it does not experience hydrogen bonding
Yes, because it has a permanent dipole moment
Which of the following compounds is expected to have the HIGHEST melting point?
CH3CH2OH
CH3Cl
CH3CH2CH3
CH3OCH3
Based on the strength of the IMFs, estimate from greatest to smallest the vapor pressures of each substance.
propane > ethanal > ethene > methanol
ethene > propane > ethanal > methanol
ethanal > methanol > ethene > propane
methanol > ethanal > propane > ethene
When in liquid state, which two substances are most likely soluble in water?
propane and ethene
methanol and propane
ethene and ethanal
methanol and ethanal
Between propane and ethene, which will likely have the higher boiling point and why?
Propane, because it has a greater molar mass
Propane, because it has a more polarizable electron cloud
Ethene, because of its double bond
Ethene, because it is smaller in size
A certain substance that is very hard, has a high melting point, and is nonconducting unless melted/dissolved is:
I2
NaCl
CO2
Cu
