JAMB 2023 MOCK VERIFIED QUESTIONS COMBINED BY MR CONFIDENCE
CHEMISTRY 👇🏽
1. In the extraction of Zinc, which material is not used?
2. The major constituent of alnico is?
3. which of the following metals cannot form amalgam
A. zinc
B. aluminum
C. fe
D. cu
4. the differences between fat and oil
5. The catalyst used in contact process
6. The catalyst used in hydrogenation
7. Which of the will exhibit the most electronegative character?
a ) Al b) Si c) P d) S
8. calculate the vapour density of carbon monoxide ( C=12,O=16)
9.calculate the mass of two moles of nacl (Na=23,Cl=35.5)
10. pollutants that contributes to the depletion of ozone layer
11.in nitrogen cycle, agrobacterium converts nitrates to gaseous nitrogen through a process called
12.The by-product of saponification of fatty acids is
13.what mass of hydrogen in required for the conversion of propyne to propane
14. washing soda dissolve aluminum utensils by
15 when a stream of air is passed through heated copper and caustic soda, the residual gas is mainly…
Most of the calculations in chemistry are organic chemistry
chemistry.
questions on relative molecular mass.
two questions i can remember
CH3cooH+ PCL5—>Y
what’s Y?
cr2O7^2- +14H + X–>2cr^3+ +7H20
what’s X?.
what’s the advantage of soapy detergent over soapless detergent?.
iupac naming of this compound.
ch3( ch2)4coo( ch2)2 ch3.
which of this is amphoteric?
more questions on calculation basically mole concept…
✓calculation on solubility
✓naming of organic compound
✓ application of polymerization was asled too
✓ the differences between fat and oil
✓which of the following metals cannot form amalgam
A. zinc
B. aluminum
C. fe
D. cu
✓ the catalyst used in contact process
the catalyst used in hydrogenation
✓ le chatelier principle was asked too… though mainly the application
✓ writing of equilibrium constant
✓ effect of change in temperature on equilibrium
✓ separation techniques
✓ calculation on the mass of substance deposited during electrolysis
✓The equation at the anode during the electrolysis of cupper sulphate
✓ identification of oxidizing and reducing agents
✓ balancing of redox reaction
✓ calculation of oxidation number of an element in a compound.
JAMB 2023 MOCK VERIFIED QUESTIONS COMBINED BY LUMMY
PHYSICS
1- what is the dimension of magnitude
There was a question from:
2-Specific heat capacity
3- pressure in fluids
4- capacitance
5- machines where i was told to find mechanical advantage
1… dimension of a momentum
2…The motion that concern with irregular movement of an object or body with no specific direction is
3…The amount of moisture in air compared to what the air can hold at a temperature is
4… The vibration produced in a body when the body is made to vibrate with a frequency other than its own natural frequency is
while the calculations are based on linear expansion, waves,e.t.c
✓refractive index is 1.5 and we are asked to calculate the angle of refraction if the angle of incidence is 30.
✓ calculation on specific latent heat of fusion
✓ linear expansivity was asked too..mainly the calculation aspect
✓ wave equation was asked
✓ the Charles law
✓ effective capacitance in parallel and series. calculation in each casese
✓simple AC circuits
✓which of the following electrolytes is used in Daniel cell
formula representation of hooke’s law
calculations on acceleration, machine, critical angle, threshold frequency, linear expansivity.
optical instruments for viewing ?
-Half life of a plutonium is 138 days. If 400×10⁷ atoms of plutonium exist, what is the remaining number of atoms after 512 days?
– Advantage of using alcohol as thermometric liquid is?
If the Refractive index is 1.5, calculate the angle of refraction when the angle of incidence is 30⁰
-State the formula representation of hooke’s law.
-A uniform metre rule AB has a knife edge balanced at 60m away from B, when a load of 22g is kept 10m away from A, what is the weight of the metre rule?
What’s the advantage of soapy detergent over soapless detergent?
JAMB 2023 MOCK VERIFIED QUESTIONS COMBINED BY LUMMY
BIOLOGY
1- in which organism is the flame cell found?
2- which organization is concerned with the conservation of natural resources?
3- in which organism is the lungbook found?
4-Which scientist is concerned with the modern evolution of mutation
5- there was a diagram given and the question was” what is the evidence of evolution in the diagram?
✓the outermost part of mammalian teeth is?
✓ the blue green algae belongs to which class
A. thallophyta.B man-fluidatophyta c. monera d. protista
✓. which of the following is is the female s*x cell
✓ apple is categories as ?
✓ the definition of adaptation
✓ structure of animal cell was set too
then they asked us to label endoplasmic reticulum and mitochondria
✓the extcretory organ of planaria
✓ larmack theory of use and disuse
15. The neuron connecting afferent and efferent impulse is?
16. In which organism is the flame cell found?
17. A functionless structure in man is?
18. Feathers in birds used for flying and steering is?
19. The outermost part of mammalian teeth is?
20. If a man with blood group O marries a woman with blood group AB, what are the possible blood groups of their children?
21. which of the following is is the female s*x cell
22. Apple is categorized as?
23. What develops into the seed of a flowering plant?
JAMB 2023 MOCK VERIFIED QUESTIONS COMBINED BY LUMMY
ECONOMICS
which international organization suggested privitization to nigeria
the most effective measure to control inflation
types of population census
How to calculate marginal product, elasticity of demand, variance and percentage change in a population
JAMB 2023 MOCK VERIFIED QUESTIONS COMBINED BY LUMMY
CRS
1. Absalom declared himself king at
a. Geshon b. Samaria c. Jerusalem d. Hebron
2. The act of Jesus washing the feet of his disciples shows a form of
a. Master-servant relationship b. Autocracy c. Servant relationship d. Democracy
3. The Israelites who were present at Mount Carmel did what when they saw the flames
a. stoned Elijah b. were terrified c. bowed down and worshipped Yahweh d. tried to put the fire out
4. One of Solomon’s unwise decisions was that of
a. use of forced labor b. a healthy relationship with other nations c. building of the temple d. engaging in battles with other nations
5. Among the criteria for appointing the deacons were
a. wisdom and courage b. wisdom and the holy spirit c. circumcision d. self-preservation
6. According to John, after Jesus turned water into wine what happened
a. the disciples fled b. he warned them to tell no one of this c. the disciples believed in him d. mary loved her son more
JAMB 2023 MOCK VERIFIED QUESTIONS COMBINED BY LUMMY
GOVERNMENT
There were questions about:
which nigerian president contributed to the development of ECOWAS.
Main function of OPEC
Civil srvice commision
what year did nigeria formally break diplomatic relation with britain
options were 1960, 1967, 1962 and 1961