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Chemistry
UTME / JAMB 1995
Periodic Table & Periodicity
Diagram
Solution
USE THE SECTION OF THE PERIODIC TABLE ABOVE TO ANSWER THIS QUESTION.Which of the indicate an alkali metal and a noble gas respectively?
Attached Figure / Diagram
A
M and E
B
G and E
C
R and L
D
G and L
medium Difficulty
Verified Correct Answer: Option D
Chemical Principles & Mechanism
The alkali metals are found in group one while the noble gases are found in group zero or eight of the periodic table, therefore G and L belong to groups one and eight respectively.
Source: Myschool Past Questions Archive (Record #31520)
Chemistry
UTME / JAMB 1995
Periodic Table & Periodicity
Diagram
USE THE SECTION OF THE PERIODIC TABLE ABOVE TO ANSWER THIS QUESTION.Which letter represents a non-metal that is a solid at room temperature?
Attached Figure / Diagram
A
T
B
R
C
J
D
X
medium Difficulty
Verified Correct Answer: Option A
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #31521)
Chemistry
UTME / JAMB 1995
Stoichiometry, Mole Concept & Volumetric Analysis
Diagram
Solution
The arrangement above can be used for the collection of
Attached Figure / Diagram
A
sulphur (IV) oxide
B
ammonia
C
hydrogen chloride
D
nitrogen
medium Difficulty
Verified Correct Answer: Option D
Chemical Principles & Mechanism
This apparatus can be seen either in the preparation of Nitrogen gas from AIR or from the reduction of Copper(II) Oxide by Ammonia in which Nitrogen gas is collected in the gas jar over water.
Reaction Equation:
\(3CuO_{(s)} + 2NH_{{3}{(g)}} \to 3Cu_{(s)} + 3H_{2}O_{(l)} + N_{{2}{(g)}}\)
Source: Myschool Past Questions Archive (Record #31523)
Chemistry
UTME / JAMB 1995
Reaction Rates & Chemical Equilibrium
Diagram
Solution
Use the diagram above to answer this question. The activation energy of the uncatalysed reaction is
Attached Figure / Diagram
A
X
B
X + Y
C
X - Y
D
Y
medium Difficulty
Verified Correct Answer: Option A
Chemical Principles & Mechanism
Activation energy is the minimum amount of energy required for a chemical reaction to occur. Graphically, it is the difference between the peak of the hump and the reactant energy.
Consequently, the correct answer is option A.
Source: Myschool Past Questions Archive (Record #31525)
Chemistry
UTME / JAMB 1995
Reaction Rates & Chemical Equilibrium
Diagram
Solution
It can be deduced that the rate of the reaction?
Attached Figure / Diagram
A
for path l is higher than path ll
B
for path ll is higher than path l
C
is the same for both paths at all temperatures
D
depends on the values of both x and y at all pressures
medium Difficulty
Verified Correct Answer: Option B
Chemical Principles & Mechanism
A catalyst does affect the rate of a chemical reaction, generally by increasing it, by providing an alternative reaction pathway with a lower activation energy.
Path II is actually a catalysed reaction while path I is uncatalysed. Thus, the rate of reaction in path II is higher than path I.
Source: Myschool Past Questions Archive (Record #31526)
Chemistry
UTME / JAMB 1995
Organic Chemistry I: Hydrocarbons & Crude Oil
Solution
The functional group represented in the compound above is?
A
alkanol
B
alkanal
C
alkanone
D
alanoate
medium Difficulty
Verified Correct Answer: Option B
Chemical Principles & Mechanism
The carbonyl group in tha alkanal (aldehyde) family is always at the end of a carbon chain
Source: Official Exam / Past Question Archive
Biology
UTME / JAMB 1995
Supporting Tissues & Skeletal System
Secondary thickening in dicotyledonous stem is controlled by the
A
xylem
B
phloem
C
cambium
D
pericycle
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 #5388)
Biology
UTME / JAMB 1995
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
2H2 → 2H2 + O2(g). The equation above represents a part of the light stage of photosynthesis. Which of the following must be presents for this reaction to occur?
A
Enzyme and light energy
B
Carbondioxide and light energy
C
Light energy and cholorphyll
D
Chlorophyll and enzyme
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 #5389)
Biology
UTME / JAMB 1995
Variety of Organisms & Classification of Living Things
In an experiment to investigate the effect of nitrogen on the growth of plants, the substrate should be a medium of
A
washed sand
B
saw dust
C
cow dung
D
clay soil
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 #5390)
Biology
UTME / JAMB 1995
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Which vitamin plays an important role in blood clotting?
A
vitamin A
B
Vitamin K
C
Vitamin B12
D
Vitamin C
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #5391)
Biology
UTME / JAMB 1995
Nervous, Hormonal Coordination & Sense Organs
The mammalian organ which acts both as a digestive and as an endocrine organ is the
A
oesophagus
B
liver
C
pancreas
D
spleen
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 #5392)
Biology
UTME / JAMB 1995
Variety of Organisms & Classification of Living Things
Which of the following does a virus have in common with animal cells?
A
Nucleus
B
DNA
C
Gycogen
D
Cytoplasm
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #5379)
Biology
UTME / JAMB 1995
Cell Structure, Organization & Cell Division
Which of the following organelles are likely to be present in cells that are actively respiring and photosynthesizing?
A
Nucleolus and centrioles
B
Mitochondria and chloroplast
C
Lysosomes and ribosomes
D
Golgi apparatus and endoplasmic reticulum
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #5380)
Biology
UTME / JAMB 1995
Variety of Organisms & Classification of Living Things
One common characteristic of fungi, algae, mosses and ferns is that they
A
show alternation of generations
B
reproduce sexually by conjugation
C
produce spores that are dispersed
D
possess chlorophyll in their tissues
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 #5381)
Biology
UTME / JAMB 1995
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Diagram
Protein-like bodies are borne on the part labelled
Attached Figure / Diagram
A
II
B
III
C
IV
D
V
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 #5382)