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HONC Rule, Lewis Dot Structures, Structural Formulas and Smells

Total questions: 55

Worksheet time: 55mins

Name
Class
Date
1.
How many bonds does a hydrogen atom form with other atoms?
a)
1
b)
2
c)
3
d)
4
e)
0
2.
How many bonds does an oxygen atom form with other atoms?
a)
1
b)
2
c)
3
d)
4
e)
0
3.
How many bonds does a nitrogen atom form with other atoms?
a)
1
b)
2
c)
3
d)
4
e)
0
4.
How many bonds does a carbon atom form with other atoms?
a)
1
b)
2
c)
3
d)
4
e)
0
5.
What do you call the rule that tells how many bonds hydrogen, oxygen, nitrogen, and carbon atoms form?
a)
the HONC 1234 rule
b)
the octet rule
c)
the hydrogen bond rule
d)
the bonding rule
e)
the valence electron rule
6.
This type of bond is represented by one line.
a)
single bond
b)
double bond
c)
triple bond
d)
pi bond
e)
ionic bond
7.
This type of bond is represented by two lines.
a)
single bond
b)
double bond
c)
triple bond
d)
ionic bond
e)
sigma bond
8.

Which atom(s) have the incorrect number of bonds based on the HONC 1234 rule? (select all that apply)

a)

H

b)

C

c)

O

d)

N

e)

all are correct

9.

Which atom(s) have the incorrect number of bonds based on the HONC 1234 rule? (select all that apply)

a)

H

b)

C

c)

O

d)

N

e)

all are correct

10.

Which atom(s) have the incorrect number of bonds based on the HONC 1234 rule? (select all that apply)

a)

H

b)

C

c)

O

d)

N

e)

all are correct

11.

Which atom(s) have the incorrect number of bonds based on the HONC 1234 rule? (select all that apply)

a)

H

b)

C

c)

O

d)

N

e)

all are correct

12.

Which is the correct molecular structure for carbon dioxide?

a)
b)
c)
d)
13.

Which Lewis Dot Model drawing correctly shows an O2 molecule?

a)
b)
c)
d)
14.
What is the correct formula for this molecule?
a)
Si4F
b)
SiF4
c)
SiF
d)
Si4F4
15.
This is a correct dot diagram for oxygen (O)
a)
true
b)
false
16.

What is the molecular formula for structure showed?

a)

C8H18

b)

C3H3

c)

C8H3

d)

C3H2(CH3)3

17.

How many single covalent bonds does benzene (C6H6) molecule have?

a)

3

b)

6

c)

9

d)

12

18.

Based on the Lewis Dot Structure for the element Oxygen, how many covalent bonds would the O2 molecule form? The Oxygen molecule (O2) makes up approximately 19% of our atmosphere.

a)

1

b)

2

c)

3

d)

4

19.

Which structural formula would be a correct drawing of C2H4O2?

a)

A

b)

B

c)

C

d)

D

20.

Which of these structural formulas are incorrect?

a)

a and c

b)

b and e

c)

b and d

d)

c and e

21.

Which of the structural formulas below could exist according to the HONC 1234 rule?

a)
b)
c)
d)
22.

For the molecule C2H7N - what smell would you predict for the molecule?

a)

Minty

b)

Fishy

c)

Sweet

d)

Putrid

23.

Molecules that end in _______ smell minty.

a)

"ate"

b)

"ic acid"

c)

"one"

d)

"ine"

24.

How many total valence electrons are participating in bonding in the molecule above?

a)

8

b)

4

c)

2

d)

3

25.

Given the formula representing a compound:


Which formula represents an isomer of this compound?

a)
b)
c)
d)
26.

Given the structural formulas:


Which two formulas represent compounds that are isomers of each other?

a)

A and B

b)

A and C

c)

B and D

d)

C and D

27.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

28.

What type of diagram is this?

a)

Molecular formula

b)

Structural formula

c)

Ionic formula

d)

Lewis Dot Structure

29.

Which Lewis Dot structure is drawn correctly following bonding rules?

a)

A

b)

B

c)

C

d)

D

30.

Which structural formula is a correct drawing of C2H2?

a)

A

b)

B

c)

C

d)

D

31.

What is wrong with the structural formula for C?

a)

Nothing

b)

H's are bonding the wrong number of times.

c)

C's and O's are bonding the wrong number of times

d)

Just O is bonding the wrong number of times.

32.
What is the definition of a Lone Pair of electrons?
a)
A pair of electrons that are shared in a covalent bond between two atoms.
b)
a pair of unshared valence electrons that are not involved in bonding in a molecule.
c)
All of the electrons found in the outer level of an atom
d)
All of the electrons found in the core of an atom.
33.
Based on the chemical name of the compounds, which of these chemical compounds is likely to have a sweet smell?
a)
menthone
b)
hexylamine
c)
diisobutylamine
d)
hexyl acetate
34.
Which is the best hypothesis for predicting that a compound will smell minty?
a)
If the compound contains 1 oxygen atom, has twice as many hydrogen atoms as they do oxygen atoms, and the name ends in –one, it will likely smell minty.
b)
If the compound contains 2 oxygen atoms, has twice as many hydrogen atoms as they do oxygen atoms, and the name ends in –ate, it will likely smell minty.
c)
If the compound contains 1 oxygen atom, 10 carbon atoms and the name ends in –one, it will likely smell minty.
d)
If the compound contains 1 nitrogen atom, has no oxygen atoms, and the name ends in –amine, it will likely smell minty.
35.
What is the best formula for this molecule?
a)
C3H4O3
b)
C3H4O
c)
C3H4O2
d)
C3H4O4
36.
What is the best formula for this molecule?
a)
C3H2
b)
C3H8
c)
CH
d)
CH8
37.

How many hydrogens are missing from this extended structural formula?

a)

6

b)

7

c)

8

d)

9

38.

Select all that apply: SWEET smelling substances have...

a)

2 oxygen atoms

b)

2 hydrogen for each carbon atom

c)

2 word names ending in "-ate"

d)

have names ending in "-one"

e)

have even numbers of hydrogen & carbon

39.

Select all that apply: FISHY smelling substances have...

a)

contain nitrogen

b)

10 carbon atoms

c)

do not contain oxygen

d)

have names ending in "-one"

e)

have even numbers of hydrogen & carbon

40.

C10H14OC_{10}H_{14}O_{ }  L-carvone, smells...

a)

minty

b)

fishy

c)

sweet

d)

like nothing (has no smell)

41.

C8H16O2C_8H_{16}O_2  hexyl acetate, smells...

a)

minty

b)

fishy

c)

sweet

d)

like nothing (has no smell)

42.

C8H19NC_8H_{19}N  Diisobutylamine, smells...

a)

minty

b)

fishy

c)

sweet

d)

like nothing (has no smell)

43.
Which of the following is the correct Lewis structure for water?
a)
A
b)
B
c)
C
44.
In this molecule, each CARBON makes how many bonds?
a)
1
b)
2
c)
3
d)
4
45.
In this molecule, each OXYGEN makes how many bonds?
a)
1
b)
2
c)
3
d)
4
46.
Which of the following is the correct Lewis structure for CH2O?
a)
Option A
b)
Option B
c)
Option C
d)
Option D
47.
How many electrons does each line indicate are shared?
a)
1
b)
2
c)
3
d)
4
48.

Which of the following test tubes would smell sweet?

a)

1 and 4

b)

2 and 3

c)

3 and 5

d)

1 and 3

49.

Which of the following test tubes would smell minty?

a)

1 and 4

b)

2 and 3

c)

3 and 5

d)

1 and 3

50.

Which of the following statements is TRUE?

a)

Test tubes 1 and 4 contain ketones

b)

Test tubes 2 and 3 contain esters

c)

Test tube 5 contains an amine

d)

All of the above statements are true

51.

What is the name of this functional group?

a)

It has no name

b)

carboxyl

c)

ketone

d)

amine

52.

A compound that ends with "-ane" would smell like which one of the following?

a)

fishy

b)

gasoline

c)

sweet

d)

putrid

53.

A compound that ends with "-ic acid" would smell like which one of the following?

a)

fishy

b)

gasoline

c)

sweet

d)

putrid

54.

If a compound contains nitrogen and does not contain oxygen, which of the following could be true?

a)

It might smell minty

b)

The name might end in "-ol"

c)

It smell putrid

d)

The name might end in "-ine"

55.

What is the formula for the structure seen here?

a)

C7H10

b)

C10H7

c)

C7H16

d)

C7H7

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