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Molecular Geometry and polarity

Total questions: 37

Worksheet time: 6hrs 10mins

Name
Class
Date
1.
Choose the correct shape for this molecule:
a)
linear
b)
Trigonal pyramidal
c)
Bent
d)
Tetrahedral
2.
In covalent bonds, electrons are ___________.
a)
transferred
b)
gained
c)
lost
d)
shared
3.
What geometry will this molecular structure have?: H2S
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
4.
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
5.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
6.
SiCl4 has what shape?
a)
square planar
b)
square pyramidal
c)
tetrahedral
d)
octahedral
7.
What is the shape of H2O?
a)
linear
b)
tetrahedral
c)
bent
d)
trigonal pyramidal
8.
Who could this be? 
a)
CO2
b)
NH3
c)
H2S
d)
CH4
9.
Who could this be?
a)
H2O
b)
NH3
c)
CO2
d)
CH4
10.
Choose the correct shape for this molecule:
a)
linear
b)
Trigonal pyramidal
c)
Bent
d)
Tetrahedral
11.

This molecule is

a)

ionic

b)

polar

c)

nonpolar

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.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

15.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

16.
In a polar covalent bond, electrons are shared ___________.
a)
equally
b)
unequally
c)
between non-metals with similar electronegativities
d)
between a metal and a non-metal
17.
In this Lewis structure, the symbol above F means...
a)
electrons are being transferred to Fluorine
b)

electrons are less attracted to F than H

(partially positive)

c)

electrons are more attracted to F than H

(partially negative)

d)
Fluorine has formed a cation
18.
This is an example of a __________ bond.
a)
non-polar covalent
b)
polar covalent
c)
ionic
d)
metallic
19.
What geometry will this molecular structure have?: PH3
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
20.

In a polar covalent molecule, the electrons are shared _________________

a)

evenly and the molecule has symmetrical electron distribution

b)

unevenly and the molecule has asymmetrical electron distribution

c)

evenly and the molecule has asymmetrical electron distribution

d)

unevenly and the molecule has symmetrical electron distribution

21.

Which of the following describes the molecule O2 and its electron distribution around the entire molecule?

a)

polar and symmetrical

b)

nonpolar and asymmetrical

c)

nonpolar and symmetrical

d)

polar and asymmetrical

22.

An example of a covalent compound is

a)

sodium floride

b)

calcium chloride

c)

carbon dioxide

d)

all of the above

23.

Which of the following is NOT true of this type of bond?

a)

The atoms could have an electronegativity difference of 1.0

b)

The electron distribution is symmetrical

c)

It could occur between a phosphorus and chlorine atom

d)

The red represents the more negative atom

24.

Assuming the red dots represent electrons, the bond between these two atoms can be classified as..

a)

Polar bond

b)

non polar bond

c)

ionic bond

25.

Which of the following molecules would have ionic bonds?

a)

MgCl2

b)

CH4

c)

O2

d)

PCl3

26.

A covalent bond occurs between a

a)

Metal and non metal

b)

two nonmetals

c)

two metals

27.

In a polar molecule, electron distribution around the entire molecule is

a)

symmetrical

b)

asymmetrical

28.

What makes a molecule nonpolar? (check all that apply)

a)

No lone pairs on the central atom

b)

uneven electron distribution

c)

all terminal (outside) atoms are the same

d)

a large electronegativity difference between the two elements in the molecule

29.

Classify the polarity of this molecule

a)

polar covalent

b)

nonpolar covalent

c)

ionic

30.

The electrons in an ionic molecule are shared...

a)

Evenly

b)

Unevenly

c)

Electrons are not shared

d)

None of the Above

31.

In a polar covalent bond, the electrons spend more time and localize around the atom...

a)

with the Greatest Electronegativity

b)

with the Lowest Electronegativity

c)

Each atom Equally

32.

In a nonpolar covalent bond, the electrons spend more time and localize around the atom...

a)

with the Greatest Electronegativity

b)

with the Lowest Electronegativity

c)

Each atom Equally

33.

Look at this covalent molecule as a whole. What type of molecule is it? (Is it symmetrical?)

a)

Polar

b)

Non-polar

c)

Ionic

34.

Look at this covalent molecule as a whole. What type of molecule is it? (Is it symmetrical?)

a)

Polar

b)

Nonpolar

c)

Ionic

35.

Look at this covalent molecule as a whole. What type of molecule is it? (Is it symmetrical?)

a)

Polar

b)

Nonpolar

c)

Ionic

36.

Look at this covalent molecule as a whole. What type of molecule is it? (Is it symmetrical?)

a)

Polar

b)

Nonpolar

c)

Ionic

37.

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

a)

nonpolar

b)

polar

c)

ionic

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