WorksheetsLBC Chapter 6 Review 2
Total questions: 20
Worksheet time: 28mins
Name
Class
Date
1.
What is the definition of an Isomer?
a)
Compounds with the same molecular formula but different structural formulas.
b)
A diagram that shows a molecule’s structure by using dots to represent the valence electrons.
c)
Chemical formula of a molecular substance, showing the identity of the atoms in each molecule and the ratios of those atoms to one another.
d)
Starting materials in a chemical reaction that are transformed into products during the reaction.
2.
How many valence electrons are found in bromine?
a)
1
b)
3
c)
6
d)
7
3.
Based on the lewis dot structure seen here how many bonds would bromine usually form?
a)
1
b)
2
c)
3
d)
4
4.
Based on the name of the compound, which of these chemical compounds is likely to have a putrid smell?
a)
2-butanone
b)
propionic acid
c)
methyl acetate
d)
diethylamine
5.
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"
6.
Which of these compounds might smell similar to the following:
Formula: C4H8S
Name: 2-butene-1-thiol
a)
Dimethyl ether C2H6O
b)
2-Butanol C4H10O
c)
3-Methyl-1-butanethiol C5H12S
d)
Butene C4H8
7.
What functionl group is responsible for a minty smell?
a)
Amine
b)
Ketone
c)
Ester
d)
Carboxyl
8.
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.
9.
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
10.
What is the functional group found in Isopentanol?
a)
Aldehyde
b)
Hydroxyl
c)
Ether
d)
Ester
11.
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.
12.
What is the formula for the structure seen here?
a)
C7H10
b)
C10H7
c)
C7H16
d)
C7H7
13.
How many electrons are shared in triple bond?
a)
2
b)
4
c)
6
d)
8
14.
Are these two structures isomers?
a)
Yes
b)
No
c)
These don't even have the same formula
d)
Minty Smelling
15.
If a compounds name ends in "-ic acid" it contains which functional group(s)
a)
Amine
b)
Ketone
c)
Ester
d)
Carboxyl
16.
What is defined as: A transformation that alters the composition of one or more substances such that one or more new substances with new properties are produced.
a)
A Physical Reaction
b)
A Chemical Reaction
c)
A Reactant
d)
A Product
17.
How many covalent bonds does this molecule have?
a)
2
b)
3
c)
4
d)
5
18.
Which of the following nonmetal elements will combine with four fluorine atoms to satisfy the octet rule?
a)
Cl (Chlorine)
b)
N (Nitrogen)
c)
Si (Silicon)
d)
S (Sulfur)
19.
Which of these is the name of the compound shown here?
a)
diethylamine
b)
diethylthiol
c)
ethyl butyrate
d)
pentanoic acid
20.
Complete the following statement: "Molecules containing the same functional groups have…"
a)
similar smells and similar structures
b)
different smells and different structures
c)
similar smells and completely different formulas
d)
different smells and similar names.
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