Organic compounds Generix Content - Organic compounds
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"Organic compounds" question number distribution across years
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JAMB questions for "Chemistry :: Organic compounds"
Q1

Which of the following is used as fuel in miners' lamp?

A

Ethene

B

Ethane

C

Erhanal

D

Ethyne

E
Q2

Which of the following organic compounds is very soluble in water?

A

C2H4

B

CH3COOC2H5

C

CH3COOH

D

C2H2

E
Q3

Benzene reacts with hydrogen in the presence of nickel catalyst at 180oC to give

A

cyclopentane

B

cyclohexane

C

xylene

D

toluene

E
Q4

Which of the following is used to hasten the fruit ripening of fruit. 

A

Ethyne

B

Ethane

C

Ethene

D

Ethanol 

E
Q5

One of the major uses of alkanes is

A

in the textile industries

B

in the production of plastics

C

as domestic and industrial fuels

D

in the hydrogenation of oils

E
Q6

Two hydrocarbons X and Y were treated with bromine water. X decolorised the solution and Y did not. Which class of compound does Y belong?

A

Alkenes

B

Alkanes

C

Benzene

D

Alkynes

E
Q7

A cracking process in petroleum refining can be represented by

A

heptane to heptene

B

heptane to 3-methylhexane

C

heptane to propene and butane

D

heptane to 2,3,3 - trimethybutane

E
Q8

An organic compound reacted with bromine water to give a colourless solution. The compound is probably an

A

alkene

B

alkanal

C

alkyne

D

alkanone

E
Q9

Which of the following hydrocarbons is mainly used as fuel?

A

Methylene

B

Ethylene

C

Methane

D

Ethyne

E
Q10

The simplest branched-chain hydrocarbon is 

A

ethene

B

ethane

C

propane

D

butane

E
Q11

Organic molecules that have the suffix-ene are unsaturated hydrocarbons that have

A

a single bond

B

a double bond

C

a triple bond

D

an ionic bond

E
Q12

If the silver mirror test is positive, it indicates the presence of an 

A

alkyne

B

alkanol

C

alkanone

D

alkanal

E
Q13

Reduction of nitro-alkanes, nitrates and amides is a route for the preparation of 

A

amines

B

alkenes

C

polymers

D

detergents

E
Q14

reduction of alkanols with LiAlH4 produces

A

primary alkanols

B

secondary alkanols

C

tertiary alkanols

D

polyhydric alkanols

E
Q15

The conversion of open chain alkanes into alkenes and aromatic compounds is called

A

isomerization

B

polymerization

C

reforming

D

cracking

E
Q16

The IUPAC nomenclature of the compound CH3CH2COOCH2CH3 is 

A

ethyl butanoate

B

ethyl propanoate

C

methyl butanoate

D

propyl ethanoate

E
Q17

CH3CH2Cl + KCN → CH3CH2CN + KCl

 

In the reaction above, the cyanide is

A

nucleophilic

B

electrophilic

C

hydrophilic

D

hydrophobic

E
Q18

How many structural isomers of chlorobutane are possible?

A

1

B

2

C

3

D

4

E
Q19

Certain useful waxes are composed mainly of 

A

alkanols

B

amino acids

C

alkanoates

D

glycerols

E
Q20

Which of the following compounds is the best possible anti-knock agnet for petrol?

A

CH3CH2CH2CH2CH2CH2CH3

B

CH3CH2(CH3)CHCH2CH2CH3

C

 

(CH3)3C — CH2CH2CH3

 

D

 

(CH3)2CH — CH(CH3)CH2CH3

 

E
Q21

Which of the following represents an aromatic compound?

A

C6H12

B

C6H5OH

C

C6H8

D

C6H9OH

E
Q22

The hydrocarbon used in the production of styrene is

A

ethane

B

ethene

C

ethyne

D

propyne

E
Q23

Which of the following alkanes has the highest boiling point?

A

Ethane

B

Methane

C

Pentane

D

Propane

E
Q24
An example of aliphatic unsaturated hydrocarbon is
A
pentane
B
butanol
C
propene
D
benzene
E
Q25
One mole of a hydrocarbon contains 36g of carbon and its vapour density is 20. The structure of the hydrocarbon is
A
CH3C ≡ CH
B
CH3 CH = CH2
C
CH3CH2C ≡ CH
D
CH3 CH2 CH3
E
Q26
An emulsion may be produced by shaking a detergent solution with
A
palm wine
B
ethanoic acid
C
palm oil
D
water
E
Q27
Water has the ability to dissolve almost all substances because its molecule has a structure with
A
one positive end and one neutral end
B
one positive end and one negative end
C
two negative ends
D
two positive ends
E
Q28
The shape of the hydrocarbon compound CH4 is 
A
square planar
B
tetrahendral
C
planar
D
linear
E
Q29
Equal moles of ethyne and hydrogen iodide react to give
A
CH2 = CH2
B
CH2 = CHI
C
CH2 - CHI
D
CH3 - CI3
E
Q30
Which of the following are structural isomers?
A
Propanoic acid and propan-1, 2-diol
B
Ethanoic acid and propanoic acid
C
Ethan-1, 2-diol and ethanoic acid
D
Propanal and propanone
E
Q31
The enzyme responsible for the conversion of sucrose into isomeric sugars is
A
invertase
B
amylase
C
lactase
D
maltase
E
Q32
What is the correct IUPAC name for NO2-?
A
Dioxonitrate (III) ion
B
Dioxonitrate (IV) ion
C
Trioxonitrate (III) ion
D
Trioxonitrate (IV) ion
E
Q33
Calcium tetraoxosulphate (VI) dissolves in water only sparingly to form a  
A
colloid
B
solution
C
suspension
D
precipitate
E
Q34
a characteristic of the alkane family is
A
substitution reaction
B
neutralization reaction
C
addition reaction
D
elimination reaction
E
Q35
An isomer of C5H12 is
A
2-ethylbutane
B
butane
C
2-methylbutane
D
2-methylpropane
E
Q36
Alkanol + Alkanoic acid ↔ Ester + Water. The reverse reaction of the equation above is known as
A
saponification
B
hydrolysis
C
fermentation
D
hydration
E
Q37
In the production of soap, concentrated sodium chloride solution is added to
A
saponify the soap
B
emulsify the soap
C
decrease the solubility of the soap
D
increase the solubility of the soap
E
Q38
How many isomers does pentane have?
A
4
B
3
C
5
D
6
E
Q39
Ethanol reacts with excess acidified K2Cr2O7 to produce
A
ethanal
B
ethyl ethanoate
C
ethanoic acid
D
ethanedioic acid 
E
Q40
The formula for ethyl butanoate is 
A
C4H9COOC2H5
B
C2H5COOC4H9
C
C2H5COOC3H7
D
C3H7COOC2H5
E
Q41
The leachate of a certain plantt ash is used in local soap making because it contains 
A
potassium hydroxide
B
sodium chloride and potassium hydroxide
C
soluble carbonates and hydrogen carbonates
D
sodium hydroxide
E
Q42
The type of reaction that is peculiar to benzene is
A
hydrolysis
B
addition
C
substitution
D
polymerization
E
Q43
Carbonates are compounds containing carbon hydrogen and oxygen in the ration
A
1:1:1
B
1:2:1
C
2:1:1
D
3:1:1
E
Q44
Which of the following is found in cotton?
A
Fat
B
Starch
C
Oil
D
Cellulose
E
Q45
The compound below is a
A
glycol
B
primary alkanol
C
secondary alkanol
D
tertiary alkanol
E
Q46
The boiling of fat and aqueous caustic soda is referred to as
A
hydrolysis
B
esterification
C
acidification
D
saponification
E
Q47
The number of isomers formed by C6H14 is
A
4
B
5
C
2
D
3
E
Q48
Which of these pairs are synthetic and natural macromolecules respectively?
A
haemoglobin and nylon, creatine and polyethylene
B
Nylon and polyethylene, creatine and haemoglobin
C
Nylon and creatine, polyethylene and haemoglobin
D
Polyethlene and creatine, nylon and heamoglobin
E
Q49
Ethanol can easily be produced by
A
fermentation of starch
B
distillation of starch solution
C
catalytic oxidation of methane
D
destructive distillation of wood
E
Q50
The reaction of an alkene with hydrogen in the presence of a catalyst is
A
a substitution reaction
B
an oxidation reaction
C
a nucleophilic reaction
D
an addition reaction
E
Q51
Tetraoxosulphate (VI) acid burns the skin by
A
hydrolysis
B
hydration
C
heating
D
dehydration
E
Q52
The general formular for the alkanals is
A
RCOOR
B
R2CO
C
RCHO
D
ROH
E
Q53
A trihydric alkanol is
A
phenol
B
glycol
C
glycerol
D
ethanol
E
Q54
Fermentation is the 
A
breaking down of carbohydrate to glucose
B
breaking down of sugar to carbohydrate
C
conversion of sugar to alcohol in the presence of yeast
D
conversion of alcohol to sugar in the presence of yeast
E
Q55
Catalytic hydrogenation of benzene produces
A
cyclohexene
B
oil
C
margarine
D
cyclohexane
E
Q56
The pair of organic compound that are isomers is
A
but-1-ene and but-2-ene
B
ethanol and propanone
C
trichloromethane  and tetrachloromethane
D
benzene and methylbenzene
E
Q57
Ethanoic acid is
A
tribasic
B
unionize
C
dibasic
D
monobasic
E
Q58
Which of the following represents hybridization in ethyne?
A
sp
B
sp3
C
sp2d
D
sp2
E
Q59
Cancerous growths are cured by exposure to
A
x-rays
B
β-rays
C
α-rays
D
γ-rays
E
Q60
Alkanones are generally obtained by the oxidation of 
A
primary alkanols
B
secondary alkanols
C
tertiary alkanols
D
alkanoic acid
E