UTME Past Questions
Chemistry · 2022
40 questions
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Question 01
Which of the following substances is used for road surfacing?
A
Bitumen
B
Coal tar
C
Kerosene
D
Diesel
Question 02
CH
2
BrCHClCH
2
CH
2
CH
2
Br
The name of the compound above is
A
1, dibromo 2chloropentane
B
1,1dibromo 2 chloropentene
C
1,1dibromo 4chloropentene
D
1-bromo-4-chloropentene
Question 03
The process that convert ethanol to ethanoic acid is
A
Halogenation
B
Combustion
C
Oxidation
D
reduction
Question 04
In electroplating steel with chromium the cathode
A
Chromium
B
Steel
C
iron
D
Copper
Question 05
When monoclinic sulphur is cooled below its transitionTemperature what happen
A
It freezes
B
It crumbles
C
It changes to rhombic sulphur
D
It evaporate
Question 06
The bond that exists in oxonium ions are
A
Covalent and dative
B
Covalent and ionic
C
Dative and ionic
D
Metallic and dative
Question 07
The property of butane and propane that makes them suitable for cooking is
A
Diffusion
B
Solubility
C
Boiling point
D
Color
Question 08
The structure of diamond is
A
Cubic
B
Hexagonal
C
Tetrahedral
D
Trigonal
Question 09
Which of the following are secondary air pollutants?
A
Ozone and SO
2
B
Ozone and CO
2
C
Ozone and NO
2
D
NO and SO
2
Question 10
During the preparation of ethane, it is passed through which of the following to remove impurities?
A
NaHCO
3
B
NaOH
C
K
2
CO
3
D
Water
Question 11
The technique commonly used in the purification of solids is
A
Chromatography
B
Decantation
C
Crystallization
D
Centrifugation
Question 12
The presence of impurity in a substance will cause the melting point to
A
Reduce
B
Increase
C
Be stable
D
Be zero
Question 13
Which of these is used in the manufacture of cosmetics?
A
Toluene
B
Phenol
C
Ethene
D
Ethane
Question 14
Which of these metals will liberate hydrogen from steam?
A
Copper
B
Iron
C
Mercury
D
Gold
Question 15
The electronic configuration of Na
+
is
A
1s
2
2s 2p
6
3s
1
B
1s
2
2s
2
2p
6
C
1s
2
2s
2
2p
6
3s
2
D
Done
Question 16
If 50cm3 of hydrogen is sparked with 75cm
3
of oxygen: 2H
2
+ O
2
→ 2H
2
O, the volume of the unreacted oxygen is
A
50cm
3
B
25cm
3
C
30cm
3
D
100cm
3
Question 17
An example of homogenous mixture is
A
Colloids
B
Sols
C
Emulsion
D
Solution
Question 18
Fine the empirical formula of a compound 69% carbon 15.3% hydrogen and 30.7 % oxygen. [C=12, H=1, O=16].
A
C
3
H
8
O
B
C
3
H
8
O
2
C
C
3
H
8
O
3
D
C
3
H
8
O
4
Question 19
Which of the following techniques would be used in a food industry?
A
Distillation
B
Chromatography
C
Filtration
D
Fractional distillation
Question 20
H+ OH¬- → H2O; this type of reaction is
A
Crystallization
B
Precipitation
C
Neutralization
D
Double decomposition
Question 21
When methane is burnt in excess air, it gives
A
CO
B
CO
2
C
O
2
D
CO
2
& H
2
O
Question 22
Which of the following process will result in a chemical change?
A
Addition of salt of water
B
Evaporation of water
C
Copper (II) oxide mixed with tetraoxosulphate (VI) acid
D
Melting of candle
Question 23
Which of the following methods is used to obtain alkanol from alkene?
A
Dehydration
B
Hydrolysis
C
Hydration
D
Fermentation
Question 24
What is the anode in the extraction of aluminum and what reaction takes place at the anode?
A
Iron, reduction
B
Graphite, oxidation
C
Graphite, reduction
D
Iron, oxidation
Question 25
All these are natural air pollutant except
A
CO
B
NO
C
O
2
D
SO
2
Question 26
Which if the following is not a support for particulate nature of matter?
A
Diffusion
B
Osmosis
C
Dilution
D
Crystallization
Question 27
What element is common t permalloy, steel and Alnico?
A
Carbon
B
Iron
C
Silicon
D
Aluminum
Question 28
The method of preparing a salt depends on it’s
A
Color
B
Density
C
Solubility
D
None
Question 29
The bonds in naphthalene molecules are
A
Ironic
B
Metallic
C
Dative
D
Van der Waals
Question 30
Addition of charcoal in the filter bed for water purification is to
A
Prevent goiter
B
Prevent tooth decay
C
Kill germs
D
Remove odour
Question 31
How many isomers does C
2
H
4
Br
2
have?
A
2
B
3
C
5 C
D
4
Question 32
What volume of water will be added to 10dm
3
of 2moldm
-3
to obtain 0.5moldm
-3
solution?
A
30dm
3
B
40dm
3
C
10dm
3
D
20dm
3
Question 33
What bond is present in hydrated copper (II) ions?
A
Electrovalent
B
Dative
C
Covalent
D
Metallic
Question 34
One mole of sucrose C12H22O11 dehydrated will give how many mole of carbon?
A
11
B
12
C
3
D
6
Question 35
The haloalkane for the preparation of fungicide is?
A
Triiodomethane
B
Tribromomethane
C
Trichlotomethane
D
Trifluoromethene
Question 36
Which of the following is common to all metals?
A
Melting point
B
Hardness
C
Conductivity
D
Ductility
Question 37
X
2(g)
→ 2Y + Z
(g),
▲H = -ve
What condition would favor the production of X?
A
Increases temperature and increase pressure
B
Decreases temperature and decrease pressure
C
Increase temperature and decrease pressure
D
Decrease temperature and increase pressure
Question 38
Which of the following gas will burn with a blue color?
A
SO
2
B
H
2
S
C
HCl
D
NO
2
Question 39
Silicon (IV) oxide after melting at about 1500 oC forms what when cooled?
A
Flint glass
B
Colored glass
C
Quartz glass
D
Heat resistant
Question 40
Which of the following pairs are oxidizing agents?
A
Chlorine and bromine
B
Chlorine and hydrogen
C
Hydrogen and oxygen
D
Iron and sulphur (IV) oxide
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