UNN POST-UTME Past Questions & Answers For Sciences
Sample Question 1
1.The boy is constantly under some ___that he is the best student in the class.
A. elusion
B. delusion
C. illusion
D. alliision
2. Her parents did not approve of her marriage two years ago because she has not reached her__
A. maturity
B. puberty
C. majority
D. minority
3. Our teacher---the importance of reading over our work before submission.
A. emphasized on
B. emphasized
C. layed emphasis on
D. put emphasis
Sample Question 2
4. A 12V battery has an internal resistance of O.5ohms. If a cable of 1.0ohm resistance is connected across the terminals of the battery, the current drawn from the battery is
A. 16.OA
B. 8.OA
C. O.8A
D. O.4A
5. If two parallel wires carry currents flowing in the same direction, the conductors will
A. attract each other
B. repel each other
C. both move in the same direction
D. have no effect on each other
6. From the generating station to each sub-station, power is transmitted at a very high voltage so as to reduce
A. eddy current loss
B. hysteres is loss
C. heating in the cables
D. magnetic flux leakage
Sample Question 3
7. Which of the following is a mixture?
A. Sodium chloride
B. Sea water
C. Iron filings
D. Granulated sugar
8. If the rate of diffusion of oxygen is taken as 1 cmV, what will be the rate of diffusion of methane whose relative molecular mass is 16?
A. 2.0
B. 1.8
C. 1.4
D. 1.0
9. An increase in temperature causes an increase in the pressure of a gas in a fixed volume due to an increase in the
A. Number of molecules of the gas
B. Density of the gas molecules
C. Number of collisions between the gas molecules
D. Number of collisions between the gas molecules and the walls of the container
Sample Question 4
10. The difference between the cell wall of a plant cell and animal cell is that .
A. plant cell wall contains silica
B. animal cell contains stomata in its membrane
C. plant cell is made up of membranes only
D. plant cell wall contains cellulose
11. In mammals, digestion of starch starts in the
A. stomach
B mouth
C small intestine
D. liver
12. In the process of pollination of a flowering plant, the pollen grain must touch mis structure to start off.
A. petals
B. calyx
C. ovary
D. stigma
