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