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Introduction to Organic Chemistry

Total questions: 45

Worksheet time: 2hrs 32mins

Name
Class
Date
1.

TRUE or FALSE.

All organic compounds are obtained from living organisms or "organic materials" while all inorganic compounds are obtained from earth's mineral constituents or "inorganic materials".

(a)  

2.

Carbon has (a)   valence electrons.

3.

Which of the two is an Organic Compound?

a)

b)

4.

____________ groups are atoms, groups of atoms or bond that determine the characteristic of an organic compound.

a)

Aliphatic

b)

Aromatic

c)

Functional

d)

Hydrocarbon

5.

Aliphatic hydrocarbons consist only single bonds, and so are called ____________ hydrocarbons.

a)

unsaturated

b)

saturated

c)

aromatic

d)

chain

6.

How many carbon atoms are in propane?

a)

1

b)

2

c)

3

d)

4

7.
Which molecular chemical bond found commonly in organic compounds?
a)
Hydrogen Bond
b)
Ionic Bond
c)
Van Der Waals Force 
d)
Covalent Bond
8.
Which of the following compounds is not organic?
a)
CH4
b)
CO
c)
C2H2
d)
CCl4
9.

How many hydrogens are missing from this extended structural formula?

a)

6

b)

7

c)

8

d)

9

10.

What is the condensed formula of this structure?

a)

CH3CH2CH2OH

b)

CH3COCH3

c)

CH3CH2CHO

d)

CH3OCH2CH3

11.
What is organic chemistry?
a)
chemistry relating to biological organisms
b)
chemistry involving carbon 
c)
chemistry involving micro-organisms
d)
chemistry involving oxygen
12.

What is the molecular formula for structure showed?

a)

C8H18

b)

C3H3

c)

C8H3

d)

C3H2(CH3)3

13.

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

a)

3

b)

6

c)

9

d)

12

14.

Isomers are molecules that have the _________molecular formula (contain the same number of atoms) but ______ structurally (having different arrangement of the atoms in space).

a)

differ, differ

b)

same, differ

c)

same, same

d)

differ, same

15.

What is a functional group?

a)

Atoms or group of atoms that give specific characteristics to a molecule

b)

Group of molecules that make up a group of atoms

c)

Group of molecules that give specific characteristics to an atom

d)

Group of atoms that give specific characteristics to an element

16.

Classify the compound based on the functional group present.

a)

Ether

b)

Ketone

c)

Ester

d)

Carboxylic acid

17.

Compounds which only contain carbon and hydrogen are termed as

a)

hydrocarbons

b)

organic compounds

c)

inorganic compounds

d)

carbohydrogens

18.

Hydrocarbons that contain a delocalized ring of π-bonds such as benzene ring are called ___________ hydrocarbons.

a)

aromatic

b)

aliphatic

c)

organic

d)

cyclo

19.

Aliphatic hydrocarbons consist only single bonds, and so are called ____________ hydrocarbons.

a)

unsaturated

b)

saturated

c)

aromatic

d)

chain

20.

Hydrocarbons, the simplest family of carbon compounds, are made from these two elements:

a)

Hydrogen and Copper

b)

Helium and Carbon

c)

Hydrogen and Carbon

21.

Compounds that are composed of the same number and type of atoms but have them arranged in different ways are ___________.

a)

isomers

b)

isotopes

c)

polymers

d)

alkanes

22.

Which of the following would have the highest boiling point?

a)

C3H8

b)

C4H8

c)

C5H12

d)

C22H44

23.
How many carbon atoms are in methane?
a)
1
b)
2
c)
3
d)
4
24.
How many carbon atoms are in ethane?
a)
1
b)
2
c)
3
d)
4
25.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
26.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
27.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
28.

Is the name of doubled bonded, unsaturated hydrocarbons.

a)

Alkanes

b)

Alkenes

c)

Allkynes

d)

Tanins

29.

What is the name of this hydrocarbon?

a)

1 - butane

b)

1 - butene

c)

2 - butane

d)

2 - butene

30.

Which of the following shows the structure of propene?

a)
b)
c)
d)
31.

Which of the following shows the structure of ethene?

a)
b)
c)
d)
32.

What chemical is this? (C5H10)

a)

Pentene

b)

Pentane

c)

Hexane

d)

Heptene

33.

Choose the name of the compound

a)

4-octyne

b)

5-octyne

c)

4-octene

d)

5-octene

34.

Choose the name of the compound

a)

1-propene

b)

2-propene

c)

propane

d)

2-propyne

35.

Choose the name of the compound

a)

3-butyne

b)

2-butyne

c)

3-butene

d)

2-butene

36.

Choose the name of the compound

a)

2-pentyne

b)

3-pentyne

c)

2-pentene

d)

3-pentene

37.

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

38.

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

39.

What functional group is shown?

a)

amino

b)

hydroxyl

c)

carboxyl

d)

sulfhydryl

40.

What functional group is shown?

a)

carbonyl

b)

hydroxyl

c)

carboxyl

d)

amino

41.

What functional group is shown?

a)

halide

b)

hydroxyl

c)

amino

d)

carboxyl

42.

Name this compound.

a)

Butanol

b)

Butene

c)

Oxybutanol

d)

Butanoic acid

43.

Name this compound.

a)

Nitroethane

b)

Ethylamine

c)

Aminoethane

d)

Ethamine

44.

The structural formula of ethyl 2-methylpropanoate is ...

a)

b)

c)

d)

45.

______________ are the chemicals which give fruits their smell.

a)

fructose

b)

lactose

c)

esters

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