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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 double bonds
B
2 single bonds
C
1 triple bond and 1 single bond
D
1 double bond and 1 single bond
2) A polar covalent bond is likely to form between two atoms that:
A
have the same number of electrons
B
differ in electronegativity
C
are similar in electronegativity
D
are of similar size
3) A chemical bond results from the mutual attraction of the nuclei for:
A
electrons
B
dipoles
C
protons
D
neutrons
4) Which molecule contains a double bond?
A
CF4
B
COCl2
C
SF2
D
C2H6
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
cannot determine from the information given
C
ionic bonding
D
molecular bonding
6) How many lone pairs are there on the central atom in H2O?
A
2
B
1
C
3
D
4
7) How many electrons are shared in a single bond?
A
4
B
6
C
2
D
8
8) What shape is CO2?
A
linear
B
tetrahedral
C
bent
D
angular
9) What forces exist between nonpolar molecules?
A
dipole-dipole
B
metallic bonds
C
dispersion
D
ionic bonds
10) How many valence electrons are in the molecule NO2?
A
11
B
21
C
23
D
17
*select an answer for all questions
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