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Covalent Bonding II
Test Description: More review!!
Instructions: Answer all questions to get your test result.
1) Which elements can form diatomic molecules joined by a single covalent bond?
A
halogens and members of the oxygen group only
B
hydrogen only
C
halogens only
D
hydrogen and the halogens only
2) A molecule with a single covalent bond is
A
CO2
B
CO
C
Cl2
D
N2
3) In which of the following compounds is the octet expanded to include 12 electrons?
A
SF6
B
PCl5
C
H2S
D
PCl3
4) Which of the following bonds is most polar?
A
H-P
B
H-H
C
H-Cl
D
H-Si
5) What property determines how much negative charge an element will have in a covalent bond with hydrogen?
A
electronegativity
B
melting point
C
atomic radius
D
ionization energy
6) What is the shape of a water molecule?
A
bent
B
tetrahedral
C
linear
D
trigonal planar
7) How many bonds can carbon form?
A
2
B
3
C
1
D
4
8) Which of the following compounds will undergo hydrogen bonding?
A
CH4
B
NH3
C
NaH
D
H2S
9) Which of the following intermolecular forces is the strongest?
A
covalent attraction
B
dipole interactions
C
dispersion forces
D
hydrogen bonding
10) Which of the following types of solids has the highest melting point?
A
network solid
B
nonmetals
C
ionic solid
D
metals
*select an answer for all questions
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