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Unit 4 Practice Test

Total questions: 45

Worksheet time: 43mins

Name
Class
Date
1.

Which of the following molecular geometry is possible for carbon tetrachloride?

a)

linear

b)

trigonal planar

c)

tetrahedral

d)

trigonal pyramidal

2.

Which of the following molecular geometry is possible for sulfur dichloride?

a)

bent / v-shaped

b)

trigonal planar

c)

tetrahedral

d)

trigonal pyramidal

3.

Which of the following molecular geometry is possible for nitrogen trichloride?

a)

bent / v-shaped

b)

trigonal planar

c)

tetrahedral

d)

trigonal pyramidal

4.

What would be the electronic geometry of the molecule shown?

a)

linear

b)

trigonal planar

c)

tetrahedral

d)

trigonal bipyramidal

e)

octahedral

5.

What would be the electronic geometry of the molecule shown?

a)

linear

b)

trigonal planar

c)

tetrahedral

d)

trigonal bipyramidal

e)

octahedral

6.

What two types of atoms make a covalent bond?

a)

2 Nonmetals

b)

1 Nonmetal and 1 Metal

c)

2 Metals

d)

2 Noble Gases

7.
This is a correct dot diagram for fluorine (F)
a)
true
b)
false
8.
This is a correct dot diagram for oxygen (O)
a)
true
b)
false
9.
Choose the correct shape for this molecule:
a)
Bent
b)
Trigonal pyramidal
c)
Trigonal planar
d)
Linear
10.
Choose the correct shape for this molecule:
a)
Tetrahedral
b)
Trigonal pyramidal
c)
Bent
d)
Trigonal planar
11.
 A lone pair is defined as
a)
A pair of bonding electrons
b)
One non-bonding electron
c)
A pair of non-bonding electrons
d)
A pair of electrons on the central atom
12.

Is this molecule polar or non-polar?

a)

Polar

b)

Non-polar

13.

Is this molecule polar or non-polar?

a)

Polar

b)

Non-polar

14.

Will this molecule be polar or nonpolar? H2S

a)

polar

b)

nonpolar

15.

Why is the molecule polar?

a)

There is a non bonding pair electrons on the central atom.

b)

There are different types of elements bonded to the central atom.

c)

There are no non bonding pairs on the central atom and all of the atoms bonded to the central atom are the same.

16.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

17.
Is Hydrogen considered a metal or a non-metal?
a)
Metal
b)
Non-metal
18.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
19.
How are covalent bonds explained?
a)
When one atom takes the other atom's electron
b)
When the atom shares an electron with an another atom
c)
When the two nucleus merge
d)
When the neutrons leave the nucleus
20.
What region of the periodic table contains atoms that form covalent bonds?
a)
the left side
b)
the middle
c)
the right side
d)
top left
21.
How many electrons are shared in a double bond?
a)
2
b)
4
c)
6
d)
8
22.

Which formula is for phosphorus trichloride?

a)

KCl3

b)

PCl3

c)

K3Cl

d)

P3Cl

23.

Silicon dioxide is the compound in sand. What is its formula?

a)

SO2

b)

NaO2

c)

SiO2

d)

SiO

24.
Which of the following is NOT an ionic compound:
a)
CaO
b)
NaOH
c)
BaCl2
d)
Br2
25.

Predict the bond between Mg and Cl

a)

covalent

b)

ionic

c)

metallic

d)

none of the above

26.
What type of bond is this? Lithium with Fluorine?
a)
ionic
b)
covalent
27.

Name the following: As2O3

(a)  

28.

Name the following: PCl5

(a)  

29.

Name the following: PCl5

(a)  

30.

Write the formula for: chlorine monoxide

(a)  

31.

When you have Br-Br, what is the polarity?

a)

Polar

b)

nonpolar

c)

Ionic

d)

molecular

32.

When you have H-Cl, what is the polarity?

a)

nonpolar

b)

polar

c)

ionic

d)

molecular

33.

When you have Li-O, what is the polarity?

a)

nonpolar

b)

polar

c)

ionic

d)

molecular

34.
What is the charge on the calcium ion?
a)
1+
b)
2+
c)
2-
d)
1-
35.
Which is a transition metal?
a)
cesium
b)
iron
c)
helium
d)
tellurium
36.
Name the compound CaF2
a)
calcium difluoride
b)
calcium (II) fluoride
c)
calcium fluorite
d)
calcium fluoride
37.

NaBr

a)

Bromide sodide

b)

Sodium bromide

c)

Sodium bromate

d)

Sodium bromite

38.
C3O8
a)
Tricarbon Octoxide
b)
Carbon Octoxide
c)
Carbon Oxide
d)
Carbon (VIII) Oxide
39.
Zn3P2
a)
Zinc Phosphide
b)
Zinc (II) Phosphide
c)
Trizinc Diphosphide
d)
Zinc Phosphate
40.
Name the following compound: SnO2
a)
tin(II) oxide
b)
tin(IV)oxide
c)
tin(II)oxygen 
d)
tin oxide
41.
What is the correct formula for sodium sulfate?
a)
NaSO4
b)
Na2S
c)
Na2SO4
d)
NaS
42.
What is the correct formula for aluminum nitrate?
a)
AlN
b)
AlNO3
c)
Al(NO2)3
d)
Al(NO3)3
43.
What is the correct formula for magnesium hydroxide?
a)
MgO
b)
MgOH
c)
MgOH2
d)
Mg(OH)2
44.
What is the correct formula for barium phosphate?
a)
BaPO4
b)
Ba2(PO4)3
c)
Ba3(PO4)2
d)
BaP
45.
What is the correct name of CaCO3?
a)
calcium carbonate
b)
calcium carbon trioxide
c)
calcium tricarbonate
d)
calcite carbonate

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