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WorksheetsOrganic Chemistry
Total questions: 52
Worksheet time: 56mins
Name
Class
Date
1.
What is the empirical formula of the following molecular formula: C3H6
a)
C3H6
b)
CH2
c)
C2H4
d)
CH3
2.
An empirical formula:
a)
is a formula that calculates the coefficients of a compound in a balanced equation.
b)
is the simplest whole-number ratio of moles of elements in the compound.
3.
What is the empirical formula for a compound containing the following ratio:
3Na:1P:4O
3Na:1P:4O
a)
NaPO4
b)
Na3P4O
c)
Na3PO4
d)
NaPO
4.
A compound came out with the following ratio
3 Carbon: 1.49 Phosphorus: 2 Oxygen- what would be the empirical formula?
3 Carbon: 1.49 Phosphorus: 2 Oxygen- what would be the empirical formula?
a)
Ca6P3O4
b)
C3PO2
c)
C6P3O4
d)
C3P3O2
5.
What is the empirical formula if you have 88.80% copper and 11.20% oxygen?
a)
Cu3O8
b)
CuO4
c)
Cu2O
d)
Cu4O10
6.
What is the empirical formula for a compound containing: 92.30% carbon and 7.70% hydrogen
a)
CH
b)
CH4
c)
C2H4
d)
C2H4
7.
What is the empirical formula for the following:
32.40% sodium, 22.5% sulfur; 45.1 % oxygen, 37.75% water?
32.40% sodium, 22.5% sulfur; 45.1 % oxygen, 37.75% water?
a)
Na2SO4H6O3
b)
Na2SO4 . 2H2O
c)
Na2SO4 . 3H2O
d)
Na2SO4 . (H2O)3
8.
What is the empirical formula if you have 36.84% nitrogen and 63.16% oxygen?
a)
NO
b)
N2O3
c)
N2O4
d)
N2O5
9.
Which one is empirical?
a)
H2O2
b)
C2H6O12
c)
CaCl2
d)
N2O8
10.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
11.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
12.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
13.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
14.
How many carbon atoms are in ethane
a)
1
b)
2
c)
3
d)
4
15.
How many carbon atoms are in propane
a)
1
b)
2
c)
3
d)
4
16.
How many carbon atoms are in butane
a)
1
b)
2
c)
3
d)
4
17.
How many hydrogen atoms are in ethane
a)
4
b)
6
c)
8
d)
10
18.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)
20
b)
22
c)
40
d)
42
19.
The longer the hydrocarbon, the _______ the boiling point
a)
Lower
b)
Higher
20.
Methyl has the molecular formula
a)
CH4
b)
CH3
c)
CH
d)
CH2
21.
Organic compounds are compounds contain ______________.
a)
O
b)
C
c)
N
d)
S
22.
Butane
a)
Alkane
b)
Alkene
c)
Alkyne
23.
Octene
a)
Alkane
b)
Alkene
c)
Alkyne
24.
Name the compound
a)
3,4 dimethyl octane
b)
3,4 diethyl octane
c)
butyl octane
d)
twelvane
25.
Name the compound
a)
hexane
b)
2,3-dimethylbutane
c)
ethylbutane
d)
2,2-dimethylbutane
26.
Give the name of this compound...
C3H8
C3H8
a)
Propene
b)
Butane
c)
Butene
d)
Propane
27.
The molecular formula for Heptane is
a)
C4H10
b)
C8H18
c)
C5H12
d)
C7H16
28.
Which of the following hydrocarbons has a double bond in its carbon skeleton?
a)
C3H8
b)
C2H6
c)
C2H2
d)
C2H4
29.
Unsaturated hydrocarbons contain ___.
a)
at least one double or triple bond between carbon atoms
b)
only double bonds
c)
only single bonds between carbon atoms
d)
only triple bonds
30.
A(n) ___ is formed when -OH groups replace one or more hydrogen atoms in a hydrocarbon.
a)
organic acid
b)
benzene ring
c)
aromatic compound
d)
alcohol
31.
Name:
a)
4-chloropentane
b)
2-chloropentane
32.
How many C-C single bonds in this compound?
a)
2
b)
5
c)
15
d)
20
33.
How many bonds C needs to become stable?
a)
1
b)
2
c)
3
d)
4
34.
Is this hydrocarbon saturated or unsaturated?
a)
saturated
b)
unsaturated
35.
General formula of Alcohol is
a)
CnH2n+2
b)
CnH2n
c)
CnH2n+1OH
d)
CnH2n+1COOH
36.
General formula of Alkene is
a)
CnH2n+2
b)
CnH2n
c)
CnH2n+1OH
d)
CnH2n+1COOH
37.
General formula of Alkane is
a)
CnH2n+2
b)
CnH2n
c)
CnH2n+1OH
d)
CnH2n+1COOH
38.
If a compound has this functional group, what must it be?
-OH
-OH
a)
Ketone
b)
Alcohol
c)
Aromatic
d)
Alkane
39.
What is an example of an alcohol
a)
ethane
b)
ethene
c)
propanol
d)
acetone
40.
How many carbons are in propanol?
a)
2
b)
3
c)
4
d)
5
41.
What is the correct formula for propanol
a)
C3H3O
b)
C3OH
c)
C3H8O
d)
C3H4COH
42.
what kind of molecule is this?
a)
alkane
b)
alkene
c)
alkyne
d)
cycloalkane
43.
Explain, in terms of carbon-carbon bonds, why this hydrocarbon is saturated.
a)
The molecule has the maximum amount of hydrogen it can have.
b)
It is an alkane so it is saturated.
c)
There are only single bonds between the hydrogen and carbon.
d)
There are only single bonds between the carbon.
44.
Which formula represents an unsaturated hydrocarbon?
a)
A
b)
B
c)
C
d)
D
45.
Which formula represents a saturated hydrocarbon?
a)
A
b)
B
c)
C
d)
D
46.
What is the functional group of an alcohol?
a)
-COO-
b)
-COOH
c)
-C=C-
d)
-OH
47.
Propane has no structural isomers
a)
True
b)
False
48.
What chemical is this? (C5H10)
a)
Pentene
b)
Pentane
c)
Hexane
d)
Heptene
49.
What is the formula of ethene?
a)
C2H4
b)
CnH2n
c)
C2H6
d)
CH4
50.
Which of these is only produced in incomplete combustion?
a)
H2O
b)
CO
c)
CO2
d)
NO2
51.
Alkenes are used in making plastics. Where do the alkenes come from?
a)
Cracking
b)
Crude oil
c)
Fractional distillation
d)
Addition reaction
52.
What is the product of the reaction between pentene and iodine?
a)
diiodopentane
b)
diiodopentene
c)
pentene-iodine
d)
bromine water
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