JAMB - Chemistry (2022)
1
The sub-atomic particles located in the nucleus of an atom are?
2
The IUPAC nomenclature of the structure is?
3
SO\(_2\) + O\(_2\) → 2SO\(_3\)
In the reaction above, the most suitable catalyst is?
4
In the preparation of salts, the method employed will depend on the?
5
The following non-metal form acidic oxides with oxygen except?
6
How many neutrons are present in atom with mass number and atomic number 37 and 17 respectively?
7
The sulphide that is commonly used in coating electric fluorescent tubes is?
8
An organic compound which liberate carbon(iv)oxide from trioxocarbonate(iv) solution is likely to be?
9
Addition of sodium chloride to water to form a solution would lead to?
Answer(D)
decrease in freezing point and increase the boiling point
10
A chemical widely used as a fertilizer is?
11
On the basis of the electrochemical series, which of these ions will show the greater tendency to be discharged at the cathode in an electrolytic cell
12
Addition of charcoal to the filter bed of sand during water treatment for township supply is to?
13
Using the metal activity series, the metal that can liberate hydrogen gas from steam is?
14
An organic compound with fishy smell is likely to have a general formula?
15
N\(_2\)O\(_4\) ⇔ 2NO\(_2\) (Δ = -ve)
From the reaction above, which of these conditions would produce the highest equilibrium yield for N\(_2\)O\(_4\)?
Answer(D)
high temperature and high pressure
16
Zn + 2HCL → ZnCl\(_2\) + H\(_2\)
What happens to zinc in the above reaction?
17
An organic functional group which can likely decolorize ammoniacal silver nitrate is?
18
A colored gas that is known to be poisonous and can readily damage the mucous lining of the lungs is?
19
In order to electroplate spoon with silver, the arrangement of the electrolytic cell is?
Answer(A)
the anode is a silver rod and the cathode is the spoon
20
An organic compound which decolorizes bromine water is likely to be?
21
Crude petroleum is converted to useful products by the process of?
22
An organic compound contains 69% carbon, 15.3% hydrogen and 30.7% oxygen. Calculate the the empirical formula [C=12, H = 1, O = 16]
23
2H\(_2\) + O\(_2\) → 2H\(_2\)O
From the equation above, calculate the volume of unreacted oxygen gas if a mixture of 50cm\(^3\) of hydroden and 75cm\(^3\) of oxygen are involved
24
In which of the following will hydrogen form ionic compound?
25
If the volume of a given mass of a gas at 0ºc is 29.5cm\(^3\). What will be the volume of the gas at 15ºc, given that the pressure remains constant.
26
The reactions below represent neutralization reaction, in which of them is the value of ΔH highest?
Answer(C)
NaOH + HCL → NaCL + H\(_2\)O
27
The pollutant usually presents in a city which generates its electricity from coal?
28
The dehydration of CH\(_3\)CH\(_2\)CH\(_2\)CH\(_2\)OH will give?
29
When heat is absorbed during a chemical reaction, the reaction is said to be
30
Which of the following best represent solid gas mixture?
31
H\(^+\) + OH\(^-\) → H\(_2\)O
The equation above illustrates
32
Electrons enter into orbitals in order of increasing energy as exemplified by?
Answer(B)
1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^1\)2pz\(^1\)3s\(^0\)
33
Wrought iron is obtained by heating cast iron in a furnace with?
34
In the extraction of iron, hot air is introduced into the blast furnace through?
35
How many bonding pair are present in carbon(iv)oxide?
