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Chem Unit 6 Review
Test Description: Use this to test your knowledge of chemical bonds
Instructions: Answer all questions to get your test result.
1) The lewis structure of HCN contains:
A
2 single bonds
B
1 triple bond and 1 single bond
C
1 double bond and 1 single bond
D
2 double bonds
2) A polar covalent bond is likely to form between two atoms that:
A
are of similar size
B
are similar in electronegativity
C
have the same number of electrons
D
differ in electronegativity
3) A chemical bond results from the mutual attraction of the nuclei for:
A
neutrons
B
electrons
C
dipoles
D
protons
4) Which molecule contains a double bond?
A
COCl2
B
SF2
C
C2H6
D
CF4
5) An unknown substance is an excellent conductor in the solid state and is malleable. What type of chemical bonding does this substance have?
A
metallic bonding
B
ionic bonding
C
cannot determine from the information given
D
molecular bonding
6) How many lone pairs are there on the central atom in H2O?
A
3
B
4
C
1
D
2
7) How many electrons are shared in a single bond?
A
8
B
2
C
4
D
6
8) What shape is CO2?
A
angular
B
linear
C
tetrahedral
D
bent
9) What forces exist between nonpolar molecules?
A
dipole-dipole
B
ionic bonds
C
metallic bonds
D
dispersion
10) How many valence electrons are in the molecule NO2?
A
11
B
23
C
17
D
21
*select an answer for all questions
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