SAMPLE QUESTIONS OF UNN POST-UTME PAST QUESTIONS & ANSWERS FOR SCIENCES

1. Erythrocytes are produced in the

A. spleen        

B. liver         

C. pancreas      

D. bone marrow

2. The breaking up of the body of a simple multicellular organism into pieces, each of which grows into a complete new organism is called

A. spore formation 

B. budding 

C. vegetative reproduction 

D. fragmentation

3. When two parents are crossed the offspring are referred to as

A. recessives       

B. test cross      

C. FI generation      

D. F2 generation

In each of the questions 10 to 12, choose the option that has the same consonant sound as the one represented by the letter(s) underlined

4. Yolk

A. Could            B. Build         C. Silk           D. Sulk

5. Osmosis

A. Ostrich          B. Music         C. Scene         D. Sign

6. Younger

A. Singer           B. Longer       C. Banger       D. Ringer

In each of the questions 13 to 15, choose the correct stress pattern from the options. The syllables are written in capital letters.

7. A. Reverential     B. reveRENtial           C. reVErential           D. reverential

8. A. orGAnizer       B. ORganizer             C. orgaNIzer             D. organizer

9.   A. ulTImatum      B. ultiMAtum           C. Ultimatum            D. ultimaTUM

10. A characteristic feature of subsistence agriculture is

A. supply of labour by farm families     

B. whole-sale of farm harvest

C. purchasing of seeds for planting  

D. disease control E. group fanning

11. The factors affecting formation of soil include the following except

A. organisms  

B. time  

C. topography 

D. catena       

E. climate

12. The force on a current carrying conductor in a magnetic field is greatest when the

A. conductor makes an angle of 60° with the field

B. force is independent of the angle between the conductor and the field

C.  conductor is parallel with the field

D. conductor is at right angles with the field

13. A magnetic field is said to exist at a point if a force is

A. exerted on a stationary charge at that point

B. exerted on a moving charge at that point

C. deflected at that point

D. strengthened at that point

14. Which of the following statements is incorrect?

A. The addition of water to quicklime is an example of a physical change

B. A chemical change is irreversible and a new substance is formed

C. A physical change can easily be reversed and no new substances are formed

D.  Separating a mixture by distillation is an example of physical change

15. 20 g of calcium trioxocarbonate(IV) is heated to a constant mass and 11.2 g of calcium oxide is left as residue. The mass of the gaseous product left is

[Ca = 40, C = 12, O = 16] 

A. 11.2 g                 

B. 44 g

C. 2.2 g                  

D. 8.8 g