Question Library
Browse, filter, and study verified past examination questions with step-by-step mathematical reasoning.
Searching 18,000+ Questions...
Sifting topics, KaTeX formulas & verified solutions
Showing 13666–13680 of 14893 verified questions
Sort by:
Chemistry
UTME / JAMB 1982
Organic Chemistry I: Hydrocarbons & Crude Oil
Solution
0.16g of methane when burnt raises the temperature of 100g of water by 40°C. What is the of combustion of methane when if the heat capacity of water is 4.2 Jg-1°C-1?
(CH4 = 16)
A
1,160 kJ mol-1
B
1,180 kJ mol-1
C
1,560 kJ mol-1
D
1,600kJ mol-1
E
1,680 kJ mol-1
medium Difficulty
Verified Correct Answer: Option E
Chemical Principles & Mechanism
The heat of combustion of methane is 1680 KJ mol-1
Source: Myschool Past Questions Archive (Record #14082)
Chemistry
UTME / JAMB 1982
Nature of Matter & Separation Techniques
Solution
Which of the following processes NOT lead to a chemical change?
A
Strirring iron in sulphur (IV) acid
B
Stirring sodium carbonate in water
C
Stirring glucose in concentrated sulphur (IV) acid
D
Mixing sulphur (IV) acid with potassium carbonate
E
Titrating an acid against base
medium Difficulty
Verified Correct Answer: Option B
Chemical Principles & Mechanism
Stirring Na2CO3 in water does not lead to a chemical change
Source: Myschool Past Questions Archive (Record #14084)
Chemistry
UTME / JAMB 1982
Metals, Transition Elements & Extraction
Solution
Brass is an alloy containing copper and?
A
zinc
B
tin
C
aluminium
D
silver
E
lead
medium Difficulty
Verified Correct Answer: Option A
Chemical Principles & Mechanism
Brass is an alloy containing copper and zinc
Source: Myschool Past Questions Archive (Record #14086)
Chemistry
UTME / JAMB 1982
Stoichiometry, Mole Concept & Volumetric Analysis
Solution
The number of grammes of potassium hydroxide in 250cm3 of one molar solution is?
(K = 39, O = 16, H = 1)
A
40g
B
52g
C
100g
D
26g
E
14g
medium Difficulty
Verified Correct Answer: Option E
Chemical Principles & Mechanism
1000 cm3 of KOH contains 56 gm of KOH
250 cm3
of 1M KOH will contain (250)/(1000) x (56)/(1) = 14gms
Source: Myschool Past Questions Archive (Record #14087)
Chemistry
UTME / JAMB 1982
Stoichiometry, Mole Concept & Volumetric Analysis
Solution
60cm3 of hydrogen are sparked with 20cm3 of oxygen at 100^\circC and 1 atmosphere. The total volume of the residual gases is?
A
60 cm3
B
10 cm3
C
40 cm3
D
30 cm3
E
70 cm3
medium Difficulty
Verified Correct Answer: Option A
Chemical Principles & Mechanism
Equation of the reaction
2\(H_2 + O_2 → 2(H_2O_2\))
no of moles: 2 1 → 2
initial volume: 60cm\(^3\) 20cm\(^3\) 0cm\(^3\)
vol used 40cm\(^3\) 20cm\(^3\) -----
after sparking 20cm\(^3\) 0cm\(^3\) 40cm\(^3\)
Therefore, the total volume of residual gases = 20cm\(^3\) left of hydrogen + 40cm\(^3\) of stream produced = 60cm\(^3\)
Source: Myschool Past Questions Archive (Record #14088)
Chemistry
UTME / JAMB 1982
Water, Solutions & Solubility
Diagram
Solution
The solubility curve of a solid X (molecular mass = 160) is as show above. 1,000 cm3 of a saturated solution of X at 80^\circC is cooled to 40^\circC . The weight of X crystalized out would be
Attached Figure / Diagram
A
10 g
B
12 g
C
14 g
D
16 g
E
18 g
medium Difficulty
Verified Correct Answer: Option D
Chemical Principles & Mechanism
At 80^\circC, we have \(1000cm^{3} = 0.4mol/cm^{3}\)
40^\circC = \(0.3mol/cm^{3}\)
hence, the loss in concentration = \(0.1mol/cm^{3}\)
= \(0.1 \times 160 = 16g\)
Source: Myschool Past Questions Archive (Record #31314)
Chemistry
UTME / JAMB 1982
Organic Chemistry I: Hydrocarbons & Crude Oil
Diagram
The i.u.p.A.C name for the compound
Attached Figure / Diagram
A
2-chloro-isopentane
B
3-chloro-isopentane
C
2-chloro-2-methylbutane
D
1-chloro-2,2- dimethylpropane
E
2-chloro-2-ethylpropane
medium Difficulty
Verified Correct Answer: Option C
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #31315)
Chemistry
UTME / JAMB 1982
Stoichiometry, Mole Concept & Volumetric Analysis
Solution
1.00g of mixture of calcium carbonate and calcium oxide liberated 0.33g of carbon dioxide on strong heating. The percentage of calcium oxide in the mixture is? (Ca = 40, C = 12, O = 16)
A
5
B
15
C
25
D
35
E
50
medium Difficulty
Verified Correct Answer: Option C
Chemical Principles & Mechanism
CaCO3 + CaO \(\to\) 2CaO + 2CO2
44gm of CO3 is liberated by 100gm of CaCO3
0.33gm of CO2 will be liberated by \(\frac{100}{44}\) x 0.33
= 0.75 of CaCO3
Amount of CaO = 1 - 0.75
= 0.25
% of CaO = \(\frac{0.25}{1} \times \frac{100}{1}\)
= 25%
Source: Official Exam / Past Question Archive
Chemistry
UTME / JAMB 1982
Stoichiometry, Mole Concept & Volumetric Analysis
Solution
1.00g of mixture of calcium carbonate and calcium oxide liberated 0.33g of carbon dioxide on strong heating. The percentage of calcium oxide in the mixture is? (Ca = 40, C = 12, O = 16)
A
5
B
15
C
25
D
35
E
50
medium Difficulty
Verified Correct Answer: Option C
Chemical Principles & Mechanism
CaCO3 + CaO \(\to\) 2CaO + 2CO2
44gm of CO3 is liberated by 100gm of CaCO3
0.33gm of CO2 will be liberated by \(\frac{100}{44}\) x 0.33
= 0.75 of CaCO3
Amount of CaO = 1 - 0.75
= 0.25
% of CaO = \(\frac{0.25}{1} \times \frac{100}{1}\)
= 25%
Source: Myschool Past Questions Archive (Record #44487)
English Language
UTME / JAMB 1982
Lexis, Structure & Register (Cloze & Vocabulary)
The Americans are displeased with professor Ikin because
A
he hates Dr. Okoro
B
he does not like his wife
C
they see him as not sufficiently, academically qualified
D
they only like people who worship them
E
they are at the helm of affairs at Songhai
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Official Exam / Past Question Archive
Biology
UTME / JAMB 1982
Basic Ecological Concepts, Ecosystems & Biomes
Solution
A population is defined as the collection of
A
Similar organism that are found in the same habitat
B
Similar organisms that breed in the same habitat
C
Similar organisms that interbreed freely in the same habitat
D
Similar organism eating the same food
E
Different organisms in the same habitat
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
A population is a summation of all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding.
REF:https://en.wikipedia.org/wiki/Population
Source: Myschool Past Questions Archive (Record #1909)
Biology
UTME / JAMB 1982
Cell Structure, Organization & Cell Division
Which of these combinations is common to plant and animal cells?
A
Centriole, middle lamella, golgi bodies, mitrochondrion
B
Cytoplasm, sap, vacuole, starch grains, leucoplasts
C
Plasma membranes, chromosomes, mitochondria, lysosomes.
D
Nucleus, nucleolus, cellulose cell wall, endoplasmic reticulum
E
Cytoplasm, centriole, cellulose cell wall, nucleolus
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #1911)
Biology
UTME / JAMB 1982
Variety of Organisms & Classification of Living Things
Which of these animals is NOT metamerically segmented?
A
Tapeworm
B
Earthworm
C
Centipede
D
Crayfish
E
Shark
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option E.
Source: Myschool Past Questions Archive (Record #1912)
Biology
UTME / JAMB 1982
Variety of Organisms & Classification of Living Things
Some of the major elements required by plants are
A
Potassium, nitrogen, phosphorus, sodium, calcium
B
Nitrogen, phosphorus, molybdenum, sodium, calcium
C
Potassium, phosphorus, molybdenum, sodium, calcium
D
Potassium, nitrogen, iron , sodium, calcium
E
Potassium, nitrogen, phosphorus, silicon, cadmium
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #1913)
Biology
UTME / JAMB 1982
Reproduction in Plants & Animals
Solution
In human reproduction, the zygote formed as a result of fertilization gets attached to the wall of the uterus. The process is called
A
Sexual reproduction
B
Cohesion
C
Pregnancy
D
Implantation
E
Viviparity
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Implantation is the process where a fertilized egg, now called a blastocyst, attaches to and burrows into the uterine lining, marking the beginning of pregnancy.
Implantation is the crucial step where the developing embryo embeds itself into the uterus, allowing it to receive nutrients and continue developing.
Source: Myschool Past Questions Archive (Record #1914)