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Jamb 2024 Biology Questions and Answers

1:Evolution based on fossil record is
a) embryology
b) physiology
c) paleontology
d) ?
2)A community which remains unchanged is known as
a)colonized community
b)stable community
3) climax community
d) ?
3) The human digestive system was shown and we wre asked to identify the part whixh helps in digestion of food and production of hormones and enzymes.
4)Drawing of mushroom was shown and we were asked question on it(can’t remember)
5) A complicated food chain was shown and we were asked the role of grasshopper and ? a) textiary consumer
b) secondary consumer
c) consumers

6)The random change in DNA base composition is known as
a) mutation
b)

7)the dominant in bryophytes is
a) sporophyte
b) gametophyte

8) The antibody in blood group b is
a)antigen-b
b)antigen-ab

9)The local biome in Nigeria that doesn’t have enough tree is
a)savanahh
b)rain forest

10)which artery carries deoxygenated blood
a)renal artery
b) pulmonary arteries

11)The protoplasm consist of the_______
a) cytoplasm and nucleus
b) cytoplasm and vacuole

12)the causative organism of typhoid is
a)styphilococus
b)vibro

13)the production of energy in living things is
a) respiration
b) nutrition

English
1) at the end of the story, Amina became
a)a lady
b)a young adult

2)The reason why amina got A in chemistry is
a) her father scolded her
b) she did exam malpractice
c) she was determined and read

3)Amina’s dad did not like her birthday gift because_____

4)Amina’s feelings towards ?was
a) infatuated
b)

5) opposite in meaning of muddled

6) interpretation of ‘because he got there on time, She didn’t drown

7) based on the comprehension’ what did the auther think of the professional school masters_______

 

PHYSICS

1)Calculate the frequency of the sound wave generated in a pipe length 0.45m closed at one end, if the velocity of the sound air is 340m/s

2) At an air temp 30°C, the saturated vapour pressure of water vapour is 24.4mmHg and at dew point at 60°C it is 10.5mmHg. Find the relative humidity of air.

3) The cubic expansivity of mercury is 1.8 x 10-4K-1 and the linear expansivity of glass 8.0 x 10-6K-1, calculate the apparent expansivity of mercury in a glass container
A. 1.00 x 10-4K-1
B. 1.56 x 10-4K-1
C. 1.72 x 10-4K-1
D. 2.04 x 10-4K-1

4) 4kg of water heated with heat at which draw 4.2A from a 200V main for 2mins. What is the increase in temp of water, given Heat capacity= 4200jk/g/k.

5) Mathematically, Snell’s can be stated as?

6) Calculated the energy produced by heater with voltmeter supply of 220V when current of 10A pass through for 150s

7) What is the device that convert AC to DC

8) A person standing 99m foot tall of a tall Clift drop his hands and hear an echo 0.33s later, cal the the speed of sound 6×6.6m/s air

9) Centripetal and centrifugal area are equal at ?

10) Mass of photon of wavelength 7×10^-7m which behaves like a particle is (h= 6.63×10^-34), e= 3.0×10^8
If the threshold frequency of fungsten is 2.5×10^-18Hz, what is the work function. (6.6×10^-30)

12) A load 96N is lifted by a machine which has a velocity ratio of 5. What is the force if it’s efficiency is 80%

13) Linear expansivity of a rod 1.2×10^-5k. cal the expansion of 20m of rod when heated from 0°C to 60°C

Jamb mock 2024
Biology

1) Which of the following enzyme is found in gastric juice
A. Lipase
B. Ptyalin
C. Trypsin
D. Pepsin

2) The endocrine gland referred to as the master gland is what

3) In termite colony the cast that is responsible for the nest and provision of food are?

4) A characteristics determined by a gene only on the x-chromosome is said to be ?

5) The anti-body present in the plasm of a man with blood group B is?

6) Dominant generation in bryophytes is

7) Random change in DNA base composition is referred to ?

8).The protoplasm is made up of ——- and ——-

9) Causative organism for typhoid fever is?

10) The removal of bilirubin from the body of man is carryout by?

11) Evolution based on fossil record is called what

12) Characteristics of anamophillous flower is the ____

CHEMISTRY

1) IUPAC nomenclature for CH3CH=CH(CH3)2
2) : Which metal will liberate hydrogen from HNO3
A. Zinc
B. Copper
C. Tin
D. Aluminum

3: Mass ratio between Hydrogen and Chlorine in a alkane is 3:16, cal it’s molecular formula

4): Preparation of ethyne, gas is passed through acidified CuSO4 to remove ?

5): Calculate the amount of hydrogen ion conc of a solution with PH3 at 25°c

6): Anhydrous compound X on exposure to atmospheric moisture turns blue, X is?

7): Gases used for fountain experiment are ammonia and ?

8): The iodine that can be added to table salt to prevent goiter is ?

9): A metal extracted from it’s ore by electricity is what?

10).: In a flame test for the colour of sodium metal is?

11): 5.25g of CaCl2 salt is required to form saturated solution with 180cm^3 of water at 298k, cal it’s solubility at what temp.

12): Cal the mass of oxygen liberated when 2.5F is passed through CuSO4 solution.

13): The number of unpaired electron in 16X atom is?

14): Two isotopes X and Y 22 and 24 ocure in ratio 3:2 determine the relative atomic mass of Y

15): Cal the pH in 0.001mol/dm^3 NaOH

16): Two elements have 13, 8 respectively when they combine they form what
A. C8H28
B. C8H36
C.
D.

17).: Indicator used for the titration of KOH solution against ethanoic acid is what?

18) : Arrange according to their boiling point, butanol, ethanol, Hexane, pentanoic acid

19): Methane react with chlorine at room temp to produce tetracholromethane in the presence of?

20: Soapless detergent can be represented by (formula)?

21) : Indicator used for the titration of KOH solution against ethanoic acid is what

 

Physics
•Convert 45°C to Fahrenheit
•aneroid barometer is used in measuring?
answer:altitude
•the dimensional unit for power is?
•the angle of declination at a place is what?
answer:the angle between the earth’s geographic and magnetic meridians
•find the r.m.s value of an alternating current whose peak value is 240V

Chemistry
•which of these is an iron ore
a. bauxite
b. magnetite
c. cassiterite
d. malachite
•which of these is an aluminum ore
a. haematite
b. magnetite
c. bauxite
d. bornite
•what else can be used when performing fountain experiment apart from ammonia
answer:hydrogen chloride
•what is the maximum number of electrons in the 3rd shell of an aluminum atom
a. 8
b. 3
c. 2
d. 1
•which of these metals are extracted electrically
a. Zn
b. Ca
c. Al
d. Mg
• SO2 is collected by downward displacement because?
answer: it is denser than air
•arrange in increasing order of first ionization energy Li>B>N>F
•an element with atomic number 15 belongs to what group and period
answer:period 3, group V
•the bonding in an oxonium ion consists of?
a. ionic and covalent
b. coordinate covalent
c. dative and covalent
d. ionic and dative
•when ammonium chloride is mixed with aqueous sodium chloride the separation technique used is
a. decantation
b. sublimation
c. filtration
d. evaporation
•when methyl orange is added to NaOH the solution turns
a. orange
b. pink
c. yellow
d. blue

English
• the artist wore a __________ at the concert
a. silk blue beautiful dress
b. beautiful blue silk dress
c. blue beautiful silk dress
d. silk dress beautiful blue

 

In Government.
-The theory of checks and balance was propounded by who?
-Who is the secetary general of OPEC
-Legitimacy means
-Sarkin fada has the work of
-Major achievement of foreign policy under obasanjo

 

CRS.
-Village of caleb and joshua was
-Abrahams age before he was called
-After the firmament what else was created

In English
-they were question tags
Comprehensions
Vowel sounds

 

biology mock
1the random changes in the dna base composition is referred to as
2. in blood grouping the only heterogeneous genotype is______
3. the factors which affects distribution of organisms in a terrestrial habitat only is____
4. A characteristics of an anemophilous flower is ______
5. the material transpored from the cells to the kidney where they are removed is ______
6. the community that remains unchanged in composition over a long period of time is known as_____
7. the type of circulatory system common to both arthropods and molluscs is ____
8. the excretory organ that is common to both fishes and amphibians is the ____
9. the theory of use and disuse of body parts and the inheritance acquired trait was proposed by _____
10. the forest type that could be found in Nigeria is the_____
11. the periodic shedding of exoskeleton of an insect is referred to as ___
12. the stamen consists of ____ and _____
13. the protoplasm consists of _____ and _____
14 the evidence of evolution that is based on fossil record is__
15. which of the following is the correct sequence of nutrition
16. tendrils of a climbing plant that twine arround a support is an example of ____
17. in the diagram above identify the reproductive tissue for the production of spore
18. southern guinea savanna is found is which of the following states in Nigeria
19. which of the following is the causative oraganism for typhoid fever
20.the dominant generation of bryophyte is the _____
21. the enzyme contained in the gastric juice is __
22. the energy in the living cell is produced in ____
23. the part of the mammalian skin where pigment is produced is___
24. a man whose blood group B(IbI⁰) married to a woman of blood group O (I⁰I⁰) what is the probability of producing children in blood group O
25. in an ecosystem factors that may cause overcrowding
26. the local biome in Nigeria with the lowest number of trees is___
27. in a toad , the zygotic chromosomes are 22, the haploid chromosomes are___
28. an example of an animal with distasteful and poisonous gland is ___
29. an example of a bird with webbed feet is___
30. a man whose blood group O receives a blood transfusion of blood group A what will occur___
31. in the roots of a plant , the root hair arises from ___
32.the discontinuous variation often used in crime detection is ____
33. the respiratory structure of an arachnid is___
34. which component of soil gives its characteristic colour
35. the endocrine glands called the master gland is ____
36. fishes , prawns and crabs which actively move and swim in water are called

 

SOME JAMB MOCK QUESTIONS
BIOLOGY
When a colour blind man marries a carrier woman, what is the probability of their offspring being colour blind
Ans 50 percent.
If a man of blood group O receives blood from blood group A, what happens
Ans Agglutination will occur
The evidence of evolution that is based on fossil records is
Ans Paleontology
The endocrine gland refered to as the master gland is
Ans The Pituitary gland
What type of circulation do arthropods and molluscs undergo?
Ans Open circulation

CHEMISTRY
Which of the following is an ore of aluminum metal?
Ans Bauxite

PHYSICS
Which of the following are luminous objects
i.sun
ii.stars
iii.moon
iv.lighted bulb
Ans i,ii and iv only

Biology
1)Which of the following is a characteristic of an anemorphilus flower ___
2. The ecological location in which an organism can live and survive in is called___
3. The evidence of evolution that’s based on fossil record is?
4. If a man of group O receive blood from group A what will happen
5. Which of the following is called a master gland_
6. Bilirubin in the body can be removed by__
7. The caste of termite is composed of___
8. The movent of a Euglena towards light of low intensity is __
9. Absorption of mineral salts in plant roots occurs by____
10. The law of use and disuse was propounded by____

Chemistry: 1) The Solubility of NaCl in H2O is higher than dilute HCl due to _____
2. H2S+ Cl2 ~~~ 2HCl + S the oxidation number of Sulphur in the above equation changes from ___ to___
3. An element with atomic number of 15 belongs to Group ___ and Period ___
4. The mass ratio between hydrogen and carbon in an alkane is 3:16. What is the molecular formula of the hydrocarbon
5. Calculate the pH in 0.01 mol/dm3 of NaOh
6. Calculate the mass of Oxygen liberated when 2.5F is passed through CuSO4 solution
7. What color does sodium metal produce in flame test.
8. Anhydrous compound X on exposure to atmospheric moisture turns blue, X is?
9. A metal extracted from it’s ore by electricity is __
10. 5.25g of CaCl2 salt is required to form saturated solution with 180cm^3 of water at 298k, cal it’s solubility at what temperature
11. Primary alkanol warmed with KMnO4 will produce___
12. In laboratory preparation of ethyne, the gas is passed through acidified CuSO4 to remove___
13. Two isotopes X and Y, 22 and 24 occur in a ratio 3:2. Determine the relative atomic mass of Y
14. 2SO2 + O2 ⇌ 2SO3 ΔH= -35.5KJ/mol-in the reaction, favourable condition for forward reaction is
15. The number of unpaired electron in 16X atom is
16. Methane reacts with Chlorine at room temperature to produce tetrachloromethane in presence of what kind of light
17. A metal that will liberate H2 gas from dilute HN03 is ___
18. Iron produced from blast furnace is

Physics:
1) a load of 160N is lifted by a machine which has a VR of 5 what is the forced expended by the machine if the efficiency is 80%
2. What is the mass of a photon of a wavelength 7×10 ^-7 which behaves like a particle
3. A device used to turn AC to DC is __
4. Two forced formin a couple are separated by a distance of 0.25m if one of the forces is 40N, calculate the distance between them
5. The angle of declination is___
6. A person stood 99m from the foot of a cliff claps and hears an echo 0.33 seconds later, calculate the speed of sound in air.
7. A machine with efficiency 40% is used to lift a box. If the effort applied is twice the weight, calculate Velocity Ratio
8. Calculate fundamental frequencies of sound waves generated in a pipe of length 0.45m closed at one end if the velocity of sound in air is 340m/s
9. Centripetal and centrifugal force are equal and act ___
10. Image formed by a plane mirror is generally ___
11. Calculate the position of an object placed in front of a concave mirror if focal length 0.15m such that an image is formed 0.09m away from the screen
12. 4kg of water is heated with a heating coil which draws 4.2A from a 200V main supply for 2 mins. What is the increase in temperature of the water
13. Threshold frequency of Tungsten is 2.5 x10^ -18, what is the work function
14. Snells law can be stated as ___
15. Find the acceleration due to gravity of a body of mass 6kg at a distance of 6×10^-6m from the center of the earth
16. Examples of luminous objects include __

1.Who was the secretary -general of common wealth?
2. What is the function of SERVICOM?
3. Civil service

 

JAMB mock CRK
1.what does the scroll that God asked Ezekiel to eat signify
A.manna from above
B.word of God
C.bread of life
D.book of life

2.The book law was discovered in the reign of_

3.Moses provided water for the israelites at_
A.massah and meribah
B.midian
C.horeb
D.Red sea

4.what was the punishment for Eli
A.God ignored their prayers
B.God punished Israel
C.His two sons died in a battle
D.God neglected the prophets

5.David was chosen among all hi brothers because
A.he was the most handsome
B.he was the most intelligent
C.God saw his heart

6.God dethroned Saul because of his
A.Pride
B.stubbornness
C.disobedience

7.The greatest achievement of solomon was
A.his building projects
B.his law
C.his judgement on marital matters

8.Ahab forcefully taking away Naboth’s vineyard demonstrates his_
A.Greed
B.anger
C.wickedness

9.God showed his supremacy to the people of Israel by
A.consuming Elijah’s sacrifice by fire
B.by killing the prophets of baal
C.sentencing Ahab to death by hanging

10.According to paul,humility means
A.counting on God’s grace
B.counting others to be better than you

11.Christians can be good citizens through
A.praying
B.challenging the government
C.paying taxes and rates when due
D.Joining in protests against the government

12.The disciples did not come close to Saul because
A.they thought that he was not truly converted
B.he needed to suffer for his sins

13.According to John,partiality in the church can be seen through
A.Equal treatment of the poor and the rich
B.shabby treatment of the poor
C.shabby treament of both the rich and the poor

14.According to paul,on the second coming of jesus christ the dead will
A.inherit the earth
B.rise first
C.be given grace by God

JAMB mock GOVERNMENT
15.One major significance of the republican constitution was that
A.the queen was no longer the head of state
B.the president was the head of government
C.the prime minister was the head of state

16.Bi-cameralism is mainly ceiticized because of
A.delay in legislation
B.Disagreement between the two houses
C.denigration of the house of representatives

17.A type of government whereby the central power is weak while the component units are stronger is said to be
A.unitary
B.federal
C.confederal

18.A system of government that is hereditary is known as

19.A form of government that allows religious leaders to rule is known as
A.aristocracy
B.plutocracy
C.theocracy

20.A political ideology that is strongly against ownership exploitation is
A.nazism
B.socialism
C.capitalism

21.The reason for the intervention of military in government is

22.The act of making a public office to be profit oriented is known as

23.A constitution that is decide and documented on a file is said to be
A.rigid
B.written
C.unwritten

24.Delegatied legislation negates _

25.A system whereby citizens contest in elections individually is known as
A.one party system
B.multiparty system
C.two party system
D.zero party system

26.which factor of political socialization affects the early view of a citizen about politics
A.pressure group
B.family
C.political party

27.A candidate can win in an absolute majority system if the candidate has
A.40% of the votes cast
B.60% of the votes cast
C.highest nunber of votes cast
D.50% of the votes cast

28.The director of a public corporation is the
A.board of directors
B.chairman
C.General manager
D.Managing director

29.The clerical part of the civil service is responsible for

30.The warrant chiefs were established in the East because

31.what was the main feature of lyttleton constitution

 

Chemistry
1.what is the iupac nomenclature of CH³CH=CH(CH³)2
2. in the periodic table, a element with atomic number 16 which group and period does the element belong to
3. in a fountain experiment , the gases used are ammonia and ____
4. a primary alkanol which is primarily heated and reacted with acidified KMnO4 yields ______
5. a mixture of ammonium chloride and sodium chloride will be separated by___
6. an anhydrous compound X on exposure to atomspheric moisture turns blue X is___
7. Magnesium has smaller radius than that of Calcium because ____
8. 2SO² + O2(g) = SO3 , what will favour the forward reaction___
9. SO2(g) is delivered through downward delivery of gas because___
10 in the equation Zn +CuSO4 = ZnSO4 +Cu
copper is what in the reaction
11. iron produced directly from the blast furnace is _____
the bond which exist in hydroxonium ion is
___
12.the reaction between diamines and dicarboxylic acid copolymerize to produce___
13. zinc is not a transition element because__
14. the metal that will liberate H2(g) from dilute HNO3 is ____
15. iron can be extracted from ___
16. a reaction of methane and chlorine gas at room temperature to yield tetrachloromethane in the presence of ___
17. the process of converting of ethanol to ethene using conc. H2SO4 at 180⁰c is by _____
18. what number of unpaired electrons is present in X¹⁶
19. chlorine gas is upward delivery of air because___
20. calculate the solubility of NaCl at 65⁰c when 225g of salt is dissolved in 1dm3 of solution (Na= 23 Cl=35.5)
21. calculate the ph in 0.001mol/dm³ of NaOH
22.in condensation polymerization, the monomer are linked together in a regular fashion with elimination of __
23. which of the following compounds has covalent ionic and dative bond within its crystal ZnCl2 NH3 NH4Cl Ca(NO3)2
24. an organic compound which decolourizes acidified KMnO4 abd does not react with ammoniacal silver nitrite is an example of ___
25. the source of carbon(ii)oxide that acts as an air pollutants is ___
26 . the solubility of NaCl in H2O is higher than that of HCl because__
27. in the electrolysis of brine using platinum electrode , the electrolyte become___
28. ions that cause hardness in water are removed industrially by ____
29 . calculate the time required to deposit 4.5g of copper from CuSO4 solution by passing a current of 2.5 amperes
30. Iodine can be added to table salt to prevent goiter ( AgI HgI2 NH4I KI)
31. HCl is a strong acid because___
32. ethyne is passed through hot tube in the presence of organic nickel catalyst , it polymerizes to
33 Aluminum is preferred to copper in making overhead cable beacause aluminum is ___
34 a hydrocarbon whose C= 9.0g H = 2.0g whose vapor density is 22 calculate its molecular formula
35. H2+I2 = HI the enthalpy change= -9500J and entropy= +28J , the reaction is ___

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