1. A semi conductor in which the holes are excess is . a. P-typeb. N- type C. P-n type D. Ohmic type.
2. Two parralel wires carrying current in opp direction will — a. Be attracted to each other B. Not affected C. Attract then repel D. Repel.
3. Induced current in faraday’s law of electromagnetic induction depends on.
4. Which of the following is a non magnetic materialA. IronB. PlatinumC. CobaltD. Steel.
The compound used as “antifreeze” in car radiators in cold regions of the world isA. EthanolB. Ethylene glycolC. EthanalD. Propane-1, 2-diol
[They cheap sha … I saw 1. The national park of Nigeria is located at A …. edo state B.. ogun state C … Lagos…. D … kaduna 2… a criminal can be traced through which of the following A.. blood group B fingerprint C genotype.
The kind of joint found in the scapula of a mammals is……A.sliding and glidingB. Hinge jointC. Pivot jointsD. Ball and socket.
2023 BIO Q
The kind of joint found in the pelvic which runs the femur of a mammals is……A.sliding and gliding B. Hinge jointC. Pivot jointsD. Ball and socket.
2023 BIO Q
The kind of joint found in the knee and elbow of a mammals is……
A.sliding and gliding B. Hinge joint C. Pivot joints D. Ball and socket.
The kind of joint found in between the atlas and axis vertebrae of a mammals is……A. sliding and gliding B. Hinge joint C. Pivot joint D. Ball and socket.
What type of teeth is the least numerous in herbivores A. Incisors B. Canines C. Premolars D. Molars..
QUESTIONS FROM TODAY’S JAMB 2023:
Hydrogenation of Benzene to Cyclohexane A. Cracking B. PolymerisationC. Reforming D. Aromatization
If the half life of a particle is 4.5 how long will it decay 3/4 of its mass .BaS04 is A)soluble salt B)insoluble salt C)neutral salt D)basic salt
Fundamental frequency of open closed pipe came out:
Questions on biology
1. The national park of Nigeria is located at A …. edo state B.. ogun state C … Lagos…. D … kaduna
2… a criminal can be traced through which of the following A.. blood group B fingerprint C genotype
3. Which of the following metals would not form amalgam?
4. The restructuring of organic compounds to convert it from straight to branched chain is called?
5. Which indicator would be used for the following reaction and what colour would it give?KOH + CH3CH2COOH H2O + CH3CH2COOK
6. Identify Reducing/ Oxidizing agents in equations
7. Calculations involving volume/mole/molar concentration
8. Which of the will exhibit the most electronegative character? a ) Al b) Si c) P d) S9.
Hydrolysis of organic nitriles will yield?
10. The bomb calorimeter makes use of which of the following?ans: Combustion
11. How many isomers of C4H9OH will be a tertiary alkanol?
12. Oxides of non-metals give?ans: Acidic oxides
13. Name the compound CH3CH2COOCH3
14. In the reaction 2SO2 + O2 -X– 2SO3 , X is?
15. Which of these make oils distinguished from fats? ans: Oils contain a higher proportion of unsaturation
16. If at a temperature of 120oC, the rate of formation of a product is 40cm3sec-1, what will be the new rate of formation of the product at 130oC
17. Calculations for solubility in mol/dm-3
18. The characteristic crystalline shape of solid water is due to? a )Ionic bond b) dative bond c) hydrogen bond d) vander waals bond
19. N , H2S , CO2 , Cl Which is soluble at room temperature?
20. Which of the following is not easily hydrolysed by dilute acidsans: Cellulose
21. Calculations involving Keq (Equilibrum constant)
22. The purest form of natural water is?
23. The most polluted form of water is?
24. The purest form of amorphous carbon is?
25. The compound of copper used for electroplating is ?
26. The most abundant rare gas is?
27. The ability of an organic compound to form multiple bonds with itself is?ans: Catenation*
PHYSICS
Hydrolysis of organic nitriles will yield?
10. The bomb calorimeter makes use of which of the following?ans: Combustion
11. How many isomers of C4H9OH will be a tertiary alkanol?
12. Oxides of non-metals give?ans: Acidic oxides13. Name the compound CH3CH2COOCH314. In the reaction 2SO2 + O2 -X– 2SO3 , X is?15. Which of these make oils distinguished from fats?ans: Oils contain a higher proportion of unsaturation16. If at a temperature of 120oC, the rate of formation of a product is 40cm3sec-1, what will be the new rate of formation of the product at 130oC17. Calculations for solubility in mol/dm-318. The characteristic crystalline shape of solid water is due to?a )Ionic bond b) dative bond c) hydrogen bond d) vander waals bond19. N , H2S , CO2 , Cl Which is soluble at room temperature?20. Which of the following is not easily hydrolysed by dilute acidsans: Cellulose21. Calculations involving Keq (Equilibrum constant)22. The purest form of natural water is?23. The most polluted form of water is?24. The purest form of amorphous carbon is?25. The compound of copper used for electroplating is ?26. The most abundant rare gas is?27. The ability of an organic compound to form multiple bonds with itself is?ans: Catenation
PHYSICS1.
Which of the following is not a mechanical wave?a ) Water wave b) radio wave c) sound wave d) waves on a string
2. The unit of the moment of couple is?
3. Which of these is an advantage of the alcohol thermometer to the mercury thermometer?ans: Low freezing point
4. Find the velocity ratio of a screw jack with pitch 0.3cm and arm length of 6cm
5. Which of the following properly describes photoelectric effect?
6. In a Capacitor, the current leads the voltage by?
7. Calculations involving mass, volume, and density
8. Calculate the Total capacitance connected in series, 4uF, 4uF, 4uF (Diagram)
9. Calculation involving force constant, and energy stored in a spring10. If two plane mirrors are positioned side by side, the number of images formed is 8. At what angle are they positioned ?
11. Calculations involving linear expansivity
12. 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?13. A pin floats on water due to which phenomenon?14. Which of the following describes photoelectric effect?15. A DC and an AC have basically the same components, except that in the DC, there is the …..?
16. Which of these is the function of the p-n junction diode?
17. Calculation involving heat loss, heat gain, and latent heatphysics✅RLC series✅Friction✅Power of a lens 1/f calculated in D.. note f must be in meter, they gave the question in centimeters, convert it to metre..✅Work function of a metal.. E = hf✅ Gravitational potential calculation✅Point action✅Shunt and multiplier and it’s calculation Chemistry✅ oxidizing agent in a chemical equation✅ effect of pressure on equilibrium of chemical equation✅ Vander Waal force and metallic bonds✅ Method of producing bases EXCEPT✅naming of organic compounds✅ reaction between oil and lye is called?✅ solubility✅ which is a chemical process of cleansing water…?? Flocculation, coagulation, disinfectant.✅ Enthalpy of solution .
JAMB PHYSICS QUESTIONS TODAY.
1. the velocity ratio of an inclined plane isCORRECT ANSWER = 1/sinQ2 :
where must an object be placed in front of the concave mirror so that the image will formed between the centre of curvature and the focus CORRECT ANSWER = beyond the centre
3 :- optical instruments do NOT employ the principle of linear magnification in their operations rather they use CORRECT ANSWER = angular magnification
4 :- the force of attraction between two masses m1 and m2 separated at a distance 2r is given asCORRECT ANSWER = Gm1 m2/4r2
5 :- the condition for resonance to occur in an R-L-C serves circuit isCORRECT ANSWER = W0 = 1/Lc5 :- the condition for resonance to occur in an R-L-C serves circuit isCORRECT ANSWER = W0 = 1/Lc
6 :- calculate the work done if a force of 10N applied at an angle of 30 0 to the horizontal moves the body through a distance of 0.05m CORRECT ANSWER = 0.25 {3 J7 :- the expression for electric potential (V) isCORRECT ANSWER = (q / 4Er)
7 :- the expression for electric potential (V) isCORRECT ANSWER = (q / 4Er)
8 :- a solid weighs 10.5N in air and weighs 5.5N when immersed in a liquid of density 900kgm-3, calculate the volume of the solidCORRECT ANSWER = 5.56 x 10 -4 m 3 8 :- a solid weighs 10.5N in air and weighs 5.5N when immersed in a liquid of density 900kgm-3, calculate the volume of the solidCORRECT ANSWER = 5.56 x 10 -4 m 39 :- during dispersion, colours of lightCORRECT ANSWER = travel at different speeds
10 :- cobvert 180 0F to 0C CORRECT ANSWER = 82 0C11 :-
the bean balance is used to measureCORRECT ANSWER = mass.
12 :- the diagram above represents four identical beaker of water with some droplet of a blue colour pigment. Which of them will have a faster rate of diffusion? CORRECT ANSWER = beaker IV12 :- the diagram above represents four identical beaker of water with some droplet of a blue colour pigment.
Which of them will have a faster rate of diffusion?CORRECT ANSWER = beaker IV
13 :- a thick glass tumbler cracks when hot water is pour into it because ofCORRECT ANSWER = uneven expansion
14 :- the point M in the diagram above is in stable equilibrium withCORRECT ANSWER = minimum potention energy
15 :- the charge stored by a 5F capacitor connected to a potential difference of 40V isCORRECT ANSWER = 200C
16 :- the dissociation of salt solution and acids into ions is known asCORRECT ANSWER = electroysis
17 :- the resultant of two parallel forces acting in the same direction applied to a block of wood will beCORRECT ANSWER = maximum
18 :- from the above the induced e.m.f depends onCORRECT ANSWER = I, II and III
19 :- how much current does a 120W light bulb draw when connected to a voltage of 240?CORRECT ANSWER = 0.5A
20 :- from the above diagram the effective resistance between P and Q isCORRECT ANSWER = 4.33n
21 :- a semi-conductor with rqual numver of holes and electron is known asCORRECT ANSWER = intrinsic semi-conductor
22 :- which of the following is CORRECT about the motion of a simple pendulum?CORRECT ANSWER = potention energy is maximum at the extremes
23 :- in the vibration of stretched strings, the frequency F and the tension T are related byCORRECT ANSWER = f & square root T)
24 :- from the diagram above, the pressure acting on the trapped air isCORRECT ANSWER = H mmHg
25 :- light energy E is expressed asCORRECT ANSWER = E = hf
26 :- the ejection of electron from the surface of aCORRECT ANSWER = thermianic emission27 :- where does refraction take place?CORRECT ANSWER = at the boundary between
28 :- ten 6V cells connected in parallel will give an effective e.m.f ofCORRECT ANSWER = 6V
29 :- vavpour is said to be saturated whenCORRECT ANSWER = in a dynamic equilibrium
30 :- a lagged calculator is suitable for measuring heat energy because itCORRECT ANSWER = prevents heat loss and gain
31 :- a wire carries a current of 3.0A with a magnetic field 2.0T at an angle of 30 0. calculate the force on a segment of wire 0.5mCORRECT ANSWER = 1.5N
32 :- which method of heat transfer is electro-mamgnetic in nature?CORRECT ANSWER = radiation
33 :- a light of 6.22eV is incident on a cadmium surface. If a stopping voltage of 2.15eV is required to reduce the photocurrent to zero, calculate the work function of cadmium CORRECT ANSWER =
34 :- from the digram above, calculate FCORRECT ANSWER = 60.00N
35 :- which of the folowing exhibits a wave motion?CORRECT ANSWER = a plucked stretched s tring
36 :- a stone weighs W1 Newton in air W2 Newton in water. The relative density of the stone is CORRECT ANSWER = W1/(W1-W2)37 :-
why do pressure pots cook food faster than other conventional pots?CORRECT ANSWER = its higher pressure
38 :- a spring of length 0.06m is acted upon by a force of 2N creating an extension of 0.02m. What would be the length when the applied force is increased by 8N? CORRECT ANSWER = 0.14m
39 :- when a bar magnet is suspended freely in the earth’s magnetic field, it will point toCORRECT ANSWER = north – south direction
40 :- the point where a ball moving in a viscous liquid start to move with uniform velocity is CORRECT ANSWER = terminal velocity
Today’s Real JAMB questions from the Life Changer
UTME 2023
Jamb 2023 A semi conductor in which the holes are excess is . a. P-type✅b. N- typeC. P-n typeD. Ohmic type
A. CrackingB. PolymerisationC. ReformingD. Aromatization*If the half life of a particle is 4.5 how long will it decay 3/4 of its mass* .
BaS04 is
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