1. Covalent and ionic bonds differ in that:
A. ionic bonds don't involve the sharing of electrons
B. covalent bonds are more permanent
C. covalent bonds are much less common
D. ionic bonds are electrical by nature
2. The outer shells of two atoms that are covalently bonded:
A. cancel each other
B. have increasing capacities for electrons
C. overlap
D. repel
3. The boiling temperature of water is much higher than methane because water molecules are:
A. composed of fewer atoms
B. more massive
C. smaller
D. polar

4. Find x if |x+3| = 2 
A. 1,5
B. -1,5
C. -1,-5
D. -1,3
5. If the number 481*673 is completely divisible by 9, what is the smallest whole number in place of *?
A. 3
B. 7
C. 5
D. 9
6. If N25,000.00 is kept in a bank at the rate of 2% simple interest, how much will it amount to at the end of 5 years?
A. N2,500.00
B. N5,000.00
C. N12,500.00
D. N27,500.00

7. The organ which is sensitive to light in euglena is the
A. gullet
B. chloroplast
C. eye spot
D. contractile vacuole
8. Which are among the following organs is involved in the conversion of ammonia, the main end product of protein digestion to excretory product urea?
[A] Kidney
[B] Lung
[C] Intestine
[D] Liver
9. The macro nutrients provided inorganic fertilisers are ?
[A] Carbon,Iron and boron
[B] magnesium,manganese and sulphur
[C] maagnesium,zinc and iron
[D] magnesium,phosphorus and potassium

10. Beta particles are
A. electrons
B. protons
C. neutrons
D. helium nuclei
E. tritium nuclei 
11. Which of the following has the shortest wavelength?
A. infrared ray
B. gamma ray
C. ultra violet
D. radio wave  
12. The inability of the eye to focus near objects is known as
A. long sight
B. astigmatism
C. presbyopia
D. glaucoma