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Carbon Compound

Total questions: 88

Worksheet time: 1hrs 2mins

Name
Class
Date
1.

What is the catalyst for hydration of propene ?

a)

vanadium (V) oxide

b)

phosphoric acid

c)

nickel or platinum

d)

iron powder

2.

Which of the following pairs of general formulae and homologous series is correct?

a)

III

b)

III, IV

c)

I. II, III

d)

I, II, III and IV

3.

This compound is produced by the reaction between

a)

ethanoic acid and propanol

b)

ethanoic acid and ethanol

c)

propanoic acid and ethanol

d)

propanoic acid and propanol

4.

Which of the following is the formula for compound R?

a)

C3H7COOC2H5

b)

C2H5COOC2H5

c)

CH3COOC2H4

d)

CH3COOC2H5

5.

Which of the following procedures ca be used to identify compound Q?

a)

add nitric acid and then test with a glowing wooden splinter

b)

add hydrochloric acid and followed by barium chloride solution

c)

add excess calcium carbonate and bubble the gas through lime water

d)

add nitric acid and followed by silver nitrate solution

6.

Name this

a)

2-methylbutan-2-ol

b)

2-methylpropan-2-ol

c)

2-methylpropan-1-ol

d)

2-methylbutan-1-ol

7.

Which of the following are isomers of butene ?

a)

I, III

b)

II, IV

c)

I,II, III

d)

I, II, IV

8.

What is the definition of isomerism ?

a)

Isomerism is a phenomenon whereby two or more atoms are found to have the same molecular formula but different structural formula

b)

Isomerism is a phenomenon whereby two or more molecules are found to have the same molecular formula but different structural formula

c)

Isomerism are molecules that have the same chemical properties and physical properties

d)

Isomerism are atoms that have the same chemical properties and physical properties

9.

This is the set-up of apparatus for dehydration of propanol.

What is gas X?

a)

propene

b)

ethene

c)

ethanoic acid

d)

ethanol

10.

Which of the following is not a property of ethanoic acid?

a)

smell of vinegar

b)

insoluble in water

c)

colourless liquid

d)

low melting

11.

This show the set-up of apparatus for preparation of compound X. Name the reaction for preparation of compound X.

a)

dehydration

b)

oxidation

c)

esterification

d)

condensation

12.

Pentene can be transformed to pentane by

a)

substitution

b)

hydrogenation

c)

hydration

d)

oxidation

13.

Which one is not the physical property of esters?

a)

neutral

b)

cannot conduct electricity

c)

sweet smell

d)

soluble in water

14.

Name the ester formed between propanoic acid and methanol

a)

metly propanoate

b)

methyl propanoate

c)

ehtyl ethanoate

d)

propyl methanoate

15.

ethanoic acid reacts with methanol to produce methyl ethanoate and water.

What is the catalyst used in the above reaction ?

a)

anhydrous calcium chloride

b)

concentrated sulphuric acid

c)

silica gel

d)

naphthalene

16.

Petroleum is considered as a mixture because

a)

it can be burned as a fuel.

b)

it can be separated into fractions by distillation.

c)

it is a fossil fuel formed over millions of years.

d)

it is a thick, black liquid.

17.

Fractional distillation separates crude oil based on the different __________ of the molecules in the mixture

a)

melting point

b)

boiling point

c)

freezing point

d)

chemical reactivity

18.

Shorter hydrocarbons have:

a)

Higher boiling points

b)

Lower boiling points

19.

Compounds in the same homologous series have

a)

different general formulae and different chemical properties.

b)

different general formulae and similar chemical properties.

c)

same general formulae and different chemical properties.

d)

same general formulae and similar chemical properties.

20.

Which statement about alkanes is correct?

a)

Alkanes are compounds containing carbon, hydrogen and oxygen.

b)

Alkanes are saturated hydrocarbons.

c)

Ethane is used to make poly(ethene).

d)

Methane is the only alkane that does not contain a double bond.

21.

CnH2n+2 is the general formula for (a)   series .

22.

Alkene are (a)   compounds

23.

Which reaction equation represents cracking?

a)

CH4 + 2O2 → CO2 + 2H2O

b)

C2H4 + Br2 → C2H4Br2

c)

nC2H4 → ( C2H2 ) n

d)

C2H6 → C2H4 + H2

24.

Large molecules made up of small monomers are called

a)

polymers

b)

monomer

c)

allotrope

d)

functional group

25.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)

20

b)

22

c)

40

d)

42

26.
Which one of the following is saturated?
a)

water

b)

C4H8

c)

C4H10

d)

C5H8

27.
Write a Balanced Equation for this reaction:
C2H4 + 2 O2 -->
a)

C2O2 + H4

b)

CO2 + HOH

c)

CO + H

d)

2 CO2 + 2H2O

28.

The product(s) of complete combustion of any hydrocarbon is/are _________________.

I. water

II. carbon dioxide

III. carbon monoxide

a)

I

b)

III

c)

I and II

d)

I and III

29.

Which of the following reactions is/are an incomplete combustion reaction?

a)

C5H10 + 5 O2 → 5 CO + 5 H2O

b)

C2H4 + 3O2 → 2CO2 + 2H2O

c)

2CH4 + 3O2 → 2CO + 4H2O

d)

Both A and C

30.

The correct balanced chemical equation for the reaction taking place is _____.

a)

C2H6 + 7O2 → 4CO2 + 6H2O

b)

2C2H6 + 7O2 →4CO2 + 6H2O

c)

2C2H6 +14O2 →4CO2 + 6H2O

d)

C2H6 + 7O2 → 2 CO2 + 3H2O

31.

Incomplete combustion is harmful to humans because it ___________________.

a)

increases the level of sugar in the blood

b)

produces large amounts of carbon dioxide

c)

decreases the amount of sugar in the blood

d)

produces carbon monoxide that reduces the level of oxygen in the blood

32.

Hydrocarbon fuel + oxygen ----> ___+____

(Select 2)

a)

CO2

b)

O2

c)

H2O

d)

CxHy

33.
Hydrocarbons are compounds that contain
a)

carbon only

b)

carbon and hydrogen only

c)

carbon, oxygen, and hydrogen.

d)

carbon, oxygen, hydrogen, and nitrogen.

34.

The group that has single bonds only is called as

a)

alkenes

b)

alcohols

c)

alkanes

d)

ethers

35.

Which statement about alkanes is not correct?

a)

Alkanes are saturated hydrocarbons.

b)

Alkanes burn to release heat energy.

c)

Alkanes form carbon dioxide and hydrogen when they burn.

d)

Alkane molecules contain only single bonds.

36.

Which identifies the temperature used and describes the change to the alkane molecules during the cracking process?

a)

100oC; the alkane molecules become larger

b)

100oC; the alkane molecules become smaller

c)

500oC; the alkane molecules become larger

d)

500oC; the alkane molecules become smaller

37.
What colour does bromine water turn in the presence of an alkene
a)

Orange

b)

Blue

c)

Colourless

d)

Green

38.

What is a polymer?

a)

a very light material that is highly flammable

b)

a fossil fuel

c)

a large molecule made from many monomers joined together

d)

a molecule made up of only polar bonds

39.

What is Polyethene made from?

a)

Ethene

b)

Ethane

c)

Propane

d)

Propene

40.
At which pipe: M or N are hydrocarbons with lower boiling points collected?
a)

M

b)

N

41.

Where do short chain hydrocarbons collect?

a)

At the top

b)

In the middle

c)

At the bottom

42.
Which formula represents a saturated hydrocarbon?
a)

A

b)

B

c)

C

d)

D

43.
Classify the compound based on the functional group present.
a)

alkane

b)

alkene

c)

alkyne

d)

aromatic

44.
Classify the compound based on the functional group present.
a)

alkane

b)

alkene

c)

alkyne

d)

aromatic

45.

Classify the compound based on the functional group present.

a)

alkane

b)

alkene

c)

alkyne

d)

aromatic

46.

What is carbon compound?

a)

Compound that contain hydrogen and carbon element only.

b)

Compound that contain carbon as one of their constituent elements.

c)

Compound that contain carbon and few other element.

d)

Carbon and hydrogen element.

47.

Which of the following does not contain only carbon and hydrogen?

a)

alkanes

b)

alkenes

c)

alkynes

d)

alkanols

48.
Which one of the following is saturated?
a)
water
b)
C4H8
c)
C4H10
d)
C5H8
49.
Hydrocarbons are compounds that contain
a)
  Carbon and Nitrogen
b)
Carbon and Hydrogen 
c)
  Carbon, and Oxygen
d)
Carbon, Oxygen, and  Hydrogen 
50.
Which of the following elements must be present in any organic compound?
a)
Carbon
b)
Oxygen
c)
Potassium
d)
Hydrogen
51.
Which is an organic compound?
a)
Carbon Dioxide
b)
Carbon Monoxide
c)
Carbonates
d)
Ethane
52.
Which of the following compounds is an example of hydrocarbon?
a)
CO2
b)
C2H6
c)
C2H5OH
d)
CH3COOH
53.

All compounds containing carbon are organic compounds

a)

True

b)

False

54.

Methane reacts with chlorine in substitution reaction. Which of these is an essential condition?

a)

An acid catalyst

b)

A low temperature

c)

UV light

d)

A low pressure

55.

Molecules with the same structural formula but a different spatial arrangement of atoms are:

a)

Isotopes

b)

Structural isomers

c)

Hydrocarbons

d)

Stereoisomers

56.
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
57.
Methyl has the molecular formula
a)
CH4
b)
CH3
c)
CH
d)
CH2
58.

Possible products of INCOMPLETE combustion

a)

Carbon (C)

b)

Carbon Monoxide (CO)

c)

Carbon Dioxide (CO2)

d)

Water (H2O)

59.

General formula of Alkene is

a)

A CnH2n+2

b)

B CnH2n

c)

C CnH2n+1OH

d)

D CnH2n+1COOH

60.

Alkanes react with excess oxygen to form

a)

A carbon dioxide and water

b)

B salt and water

c)

C carbon monoxide and soot

d)

D metal hydroxide and hydrogen

61.

If an alkene has 20 carbon atoms, how many hydrogen atoms will it have?

a)

20

b)

22

c)

40

d)

42

62.

What is the name of the mechanism when ethene reacts with chlorine?

a)

A Electrophilic substitution

b)

B Electrophilic addition

c)

C Free radical substitution

d)

D Nucleophilic addition

63.

Which of the following statements concerning the reaction of methane with bromine is/are correct?

(1) It is an addition reaction.

(2) It is a substitution reaction.

(3) A similar reaction will occur if propane is used instead of methane.

a)

A (1) only

b)

B (2) only

c)

C (1) and (3) only

d)

D (2) and (3) only

64.

Which correctly represents an incomplete combustion of pentane?

a)

A C5H12 + 8O2 ⟶ 5CO2 + 6H2O

b)

B C5H12 + 8O2 ⟶ 4CO + CO2 + 6H2O

c)

C C5H12 + 6O2 ⟶ 4CO + CO2 + 6H2O

d)

D C5H12 + 5O2 ⟶ 4CO + CO2 + 4H2O + 2H2

65.

What is a free radical?

a)

A An electron donor

b)

B An electron acceptor

c)

C A species with an unpaired electron

d)

D A proton donor

66.

Give IUPAC nomenclature for this compound

a)

A 2,7-dimethyl-5-ethyloctane

b)

B 5-ethyl-2,7-dimethyloctane

c)

C 2,7-dimethyl-3-ethyloctane

d)

D 4-ethyl-2,7-dimethyloctane

67.

Which step is this in the synthesis of chloroalkanes?

a)

A Termination

b)

B Initiation

c)

C Propagation

d)

D Position

68.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
69.

What is the catalyst for hydration of propene ?

a)

vanadium (V) oxide

b)

phosphoric acid

c)

nickel or platinum

d)

iron powder

70.

Which of the following is not a property of ethanoic acid?

a)

smell of vinegar

b)

insoluble in water

c)

colourless liquid

d)

low melting

71.

Pentene can be transformed to pentane by

a)

substitution

b)

hydrogenation

c)

hydration

d)

oxidation

72.

Which of the following is true about organic compounds?

a)

Is usually metallic

b)

Exists in all living things

c)

Combines with carbon to release heat

d)

Does not originate from living things

73.

Which of the following is the functional group of alcohols?

a)

CH

b)

CO

c)

OH

d)

H

74.

Ethane and propane are hydrocarbon compounds from the same homologous series. Which statement is true for both ethane and propane?

a)

Undergo addition reaction with chlorine.

b)

Undergo substitution reaction with bromine.

c)

Produce the same amount of heat on combustion.

d)

Have the same physical properties.

75.

The chemical equation below shows the combustion of butane in excess oxygen. What are the values of a, b, c, d?


aC4H10 + bO2 --> cCO2 + dH2O

a)

a=1 ; b=6; c=4; d=4

b)

a=1; b=7; c=4; d=5

c)

a=2; b=13; c=8; d=8

d)

a=2; b=13; c=8; d=10

76.

These are alternative source of hydrocarbon except

a)

Biomass

b)

biodiesel

c)

bioessence

d)

bioethanol

77.

These are physical properties of alkyne except

a)

insoluble in water

b)

has low melting and boiling point

c)

can conduct electricity

d)

less dense than water

78.
What is the general formula for saturated hydrocarbons?
a)
CnH2n
b)
CnHn+1
c)
CnH2n+1
d)
CnH2n+2
79.

why alkene produce more sooty flame?

a)

contain high percentage of hydrogen

b)

contain high percentage of carbon

c)

contain high percentage of oxygen

80.

A carbon chain by itself is not able to dissolve in water. Which functional group can be added to make the carbon chain polar and hydrophilic?

a)

NH2

b)

Phosphate

c)

Carboxyl

d)

Hydroxyl

81.

classify hydrocarbon (can answers more than one)

a)

ethane

b)

ethanoic acid

c)

butene

d)

ethanol

e)

methane

82.

Which of the following pairs of general formulae and homologous series is correct?

a)

III

b)

III, IV

c)

II, III and IV

d)

I, II, III and IV

83.

This compound is produced by the reaction between

a)

ethanoic acid and propanol

b)

ethanoic acid and ethanol

c)

propanoic acid and ethanol

d)

propanoic acid and propanol

84.

This is the set-up of apparatus for dehydration of ethanol.

What is gas X?

a)

propene

b)

ethene

c)

ethanoic acid

d)

ethanol

85.

This show the set-up of apparatus for preparation of compound X. Name the reaction for preparation of compound X.

a)

dehydration

b)

oxidation

c)

esterification

d)

condensation

86.

The diagram shows the conversion of propene to propan-1,2-diol. Which of the following is Reagent X?

a)

Water

b)

Hydrogen peroxide

c)

Acidified potassium manganate(VII) solution

d)

Manganese(IV) oxide

87.

this is................

a)

pentane

b)

pentene

c)

hexane

d)

hexene

88.

The diagram shows the chemical change that occurs to propene. Which of the followings is compound P?

a)
b)
c)
d)

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