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Naming Alkanes, Alkenes and Alkynes with alkyl groups

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.
What is the general formula of the alkynes?
a)
CnH2n+1
b)
CnH2n+2
c)
CnH2n-1
d)
CnH2n-2
2.
What is the general formula for saturated hydrocarbons?
a)
CnH2n
b)
CnHn+1
c)
CnH2n+1
d)
CnH2n+2
3.

In organic chemistry, commas separate....

a)

numbers

b)

names from numbers

4.
In organic chemistry, dashes separate....
a)
numbers
b)
names from numbers
5.
What is the structure of 2-methyl pent-2-ene ?
a)
a
b)
b
c)
c
d)
d
6.

Name the following molecule:

a)

3,3-dimethyl-1-butanol

b)

3,3-methyl-1-butanol

c)

2,2-dimethyl-4-butanol

d)

3,3,3-trimethyl-1-propanol

7.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
8.

How many structural isomers does C5H12 have?

a)

2

b)

3

c)

5

d)

9

9.

Which is the name of this compound?

a)

3-ethyl-2,2-dimethylhex-3-yne

b)

4-ethyl-5,5-methylhex-2-yne

c)

4-butylhex-2-yne

d)

4-ethyl-5,5-dimethylhex-2-yne

10.

Give the IUPAC name for this compound

a)

3-methyl-4-ethylhexane

b)

3-ethyl-4-methylhexane

c)

3-methyl-4-ethylheptane

d)

3-ethyl-4-methylheptane

11.
Why do alkane not dissolve in water?
a)
they are less dense than water
b)
they have low melting points
c)
they are non-polar compounds 
d)
they are chemically less reactive
12.

Give IUPAC nomenclature for this compound

a)

2,7-dimethyl-5-ethyloctane

b)

5-ethyl-2,7-dimethyloctane

c)

2,7-dimethyl-3-ethyloctane

d)

4-ethyl-2,7-dimethyloctane

13.

Name this molecule

a)

2-methyl-but-1-yne-3-ene

b)

1-methyl-but-1-yne-3-ene

c)

2-methyl-but-1-ene-3-yne

d)

1-methyl-but-1-ene-3-yne

14.
Which of the following is not a halide?
a)
Cl
b)
S
c)
Br
d)
I
15.
Name this molecule:
a)
trifluoro-1-methylmethane
b)
1,1,1-trifluoromethane
c)
trifluorethane
d)
1,1,1-trifluoroethane