CHEMISTRY

  1. The vigorous oxidation of primary alkanol yields?
  2. The metallic part of clay is?
  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) S
  9. 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 acids
    ans: 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
  28. Hydration energy does …………….?
    a ) Liberates heat b) Absorbs heat
  29. PxVyTz=K , If K is the constant for Charles law, what will be the values of x,y, and z
  30. 3C2H2–x- C6H6 The catalyst x is …………?
    Ans: Organo Nickel
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JAMB 2021 MOCK QUESTIONS ON PHYSICS

  1. 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 spring
  10. 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 heat
  18. Calculation involving power, volt, and resistance
  19. A boy 2m west, and then 2m south. What is his displacement?

  20. THE LIFE CHANGER
  21. At the end of the novel, who was it decided that would break the news to the Dad?
  22. When did the dad arrive in the novel?
  23. Which of the following decribes Mohammed Kabir?
  24. What did the author of the life changer study?
  25. What is the full meaning of EMAL?
  26. From the novel, Habib can be said to be a……….?

BIOLOGY

  1. Which of the following is known as the emergency hormone
  2. Which of the following reduces competition among members of a specie?
  3. What develops into the seed of a flowering plant?
  4. Which of these is an evidence of modern theory of evolution?
  5. The theory that girraffes will develop long neck was postulated by ?
  6. Which of the following is an example of Morphological variation
  7. Which of these Insects have boring mouth part?
  8. Desert can be found in which of these Nigerian states?
  9. Which of these animals use stinging as defense?
  10. Which blood group is known as the universal recipient?
  11. The spinal cord is protected by…………………?
  12. ……………. converts nitrites to nitrates
  13. Animals found on the tree top are called?
  14. …………… is when a harmless organism appears to be a harmful organism?
  15. The outermost part of the tooth is?
  16. Plants possessing pneumatophores grown in…………..?
  17. An apple is a …………. type of fruit?
  18. At what stage of mitotic division does the chromosome lie along the equator?
  19. Poor growth, reddish colouration, are visible in plants lacking?
  20. In the stem of plants, what is responsible for gaseous exchange?
  21. Which of the following carry deoxygenated blood?.
    Ans: Pulmonary artey
  22. Diagram of the Flame Cell in the Planaria.
  23. Diagram of animal cell. – Identify Mitochondria and Rough Endoplasmic Recticulum
  24. If a man with blood group O marries a woman with blood group AB, what are the possible blood groups of their children?

ALTERNATIVE ANSWERS:

  1. Adrenaline
  2. Different Ecological Niche of the adult and Larva of the species
  3. Ovule
  4. a) Fossil records b) Genetics c) Comparative Anatomy
  5. Lamarck
  6. Skin colour
  7. Aphid
  8. Plateau
  9. a) Praying mantis b) Porcupine
  10. AB
  11. Vertebrae
  12. Nitrobacter (However this wasn’t in the options… There was Nitrosomonas and Azotobacter )
  13. Arboreal animals
  14. Mimicry
  15. Enamel
  16. Mangrove
  17. Pome
  18. a) metaphase b) telophase c) anaphase d) prophase
  19. a) Nitrogen b) Phosphorus c) Calcium
  20. a) Lenticel b) Stomata c) Guard cell
  21. a) Pulmonary artery b) coronary artery.. c) & d) are two other names of arteries
  22. a)O and B b) O and A c) A and B d) AB and O
  23. 2 of the male children would be colour blind
  24. None of the parents are colour blind

PHYSICS QUESTIONNAIRES ANSWERS ON MOCK
✓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
Biology
✓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

chemistry!!!!
✓Calculation basically mole concept…
✓calculation on solubility
✓naming of organic compound
✓ application of polymerization was asled too
✓ the sient 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.


USE OF ENGLISH:
Lexis and structure. Sounds and grammar- PASSAGE AND REGISTER.

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