1. Which question Paper Type of Chemistry is given to you?
A. Type A
B. Type B
C. Type C
D. Type D
2. What is the concentration of a solution containing 2g of NaOH in 100cm3 of solution?
[Na = 23, O = 16, H = 1]
A. 0.40 mol dm-3
B. 0.50 mol dm-3
C. 0.05 mol dm-3
D. 0.30 mol dm-3
3. Which of the following properties is NOT peculiar to matter?
A. kinetic energy of particles increases from solid to gas
B. Random motion of particles increases from liquid to gas
C. Orderliness of particles increases from gas to liquid
D. Random motion of particles increases from gas to solid
4. The principle of column chromatography is based on the ability of the constituents to
A. move at different speeds in the column
B. dissolve in each other in the column
C. react with the solvent in the column
D. react with each other in the column
5. From the diagram above, an ideal can be represented by __.
6. Which of the following questions is correct about the periodic table?
A. The non-metallic properties of the elements tend to decrease across each period
B. The valence electrons of the elements increase progressively across the period
C. Elements in the same group have the same number of electron shells
D. Elements in the same period have the number of valence electrons
7. The relative atomic mass of a naturally occurring lithium consisting of 90% Li and 10% Li is
8. An isotope has an atomic number of 15 and a mass number of 31. The number of protons it contain is __.
9. The molecular lattice of iodine is held together by __.
A. dative bond
B. metallic bond
C. hydrogen bond
D. van der Waal's forces
10. The arrangement of particles in crystal lattices can be studied using
A. X - rays
B. γ - rays
C. α - rays
D. β – rays
11. From the diagram above, find the amount of solute deposited when 200 cm3 of the solution is cooled from 55oC to 40oC
A. 0.10 mole
C. 0.01 mole
D. 0.02 mole
12. The importance of sodium aluminate (III) in the treatment of water is to __.
A. cause coagulation
B. neutralize acidity
C. prevent goitre and tooth decay
D. kill germs
13. What type of bond exists between an element X with atomic number 12 and Y with atomic number 17?
14. Hardness of water is mainly due to the presence of __.
A. calcium hydroxide or magnesium hydroxide
B. calcium trioxocarbonate (IV) or calcium tetraoxosulphate (VI)
C. sodium hydroxide or magnesium Hydroxide
D. calcium chloride or sodium chloride salts
15. A suitable solvent for iodine and nephthalene is __.
A. carbon (IV) sulphide
16. Which of the following noble gases is commonly found in the atmosphere?
In the reaction above, an increase in temperature will __.
A. increase the value of the equilibrium constant
B. decreases the value of the equilibrium constant
C. increase in the reactant production
D. shift the equilibrium to the left
18. CH3COOH(aq) + OH-(aq) CH3COO-(aq) + H2O(l)
In the reaction above, CH3COO-(aq) is
A. conjugate base
D. conjugate acid
19. How many cations will be produced from a solution of potassium aluminium tetraoxosulphate (VI)?
20. Which of the following is NOT an alkali?
21. An effect of thermal pollution on water bodies is that the __.
A. volume of water reduces
B. volume of chemical waste increase
C. level of oxides of nitrogen increase
D. level of oxygen reduces
22. Which of the following is a deliquescent compound?
D. Na2CO3. 10H2O
23. A chemical reaction which the hydration energy is greater than the lattice energy is referred to as __.
A. a spontaneous reaction
B. an endothermic reaction
C. an exothermic reaction
D. a reversible reaction
24. The function of zinc electrode in a galvanic cell is that it __.
A. undergoes reduction
B. serves as the positive electrode
C. production electrons
D. uses up electrons
25. CH4(g) + Cl2(g) → CH3 Cl(s) + HCl(g)
The major factor that influence the rate of the reaction above is __.
26. The condition required for corrosion to take place is the presence of __.
A. water and carbon (IV) oxide
B. water, carbon (IV) oxide and oxygen
C. oxygen and carbon (IV) oxide
D. water and oxygen
27. In the diagram above, X is the
B. enthalpy change
C. activation energy
D. activated complex
28. The diagram above best illustrates the effect of decrease in __.
C. surface area
29. MnO-4(aq) + Y + 5Fe2+(aq) → Mn2+(aq) + 5Fe2+(aq) + 4H2O(l)
In the equation above, Y is
30. Given that M is the mass of a substance deposited during electrolysis and Q is the quantity of electricity consumed, then Faraday's first law can be written as
31. The impurities formed during the laboratory preparation of chlorine gas are removed by
32. The effect of the presence of impurities such as carbon and sulphur on iron is that they __.
A. give it high tensile strength
B. make it malleable and ductile
C. increase its melting point
D. lower its melting point
33. A few drops of concentrated HNO3 is added to an unknown solution and boiled for a while. If this produces a brown solution, the cation presents are likely to be __.
34. The bleaching action of chlorine gas is effective due to the presence of __.
A. hydrogen chloride
35. In the laboratory preparation of oxygen, dried oxygen is usually collected over __.
A. hydrochloric acid
C. calcium chloride
D. tetraoxosulphate (VI) acid
36. The property of concentrated H2SO4 that makes it suitable for preparing HNO3 is its __.
A. boiling point
C. oxidizing properties
D. dehydrating properties
37. Bronze is preferred to copper in the making of medals because it __.
A. is stronger
B. can withstand low temperature
C. is lighter
D. has low tensile strength
38. The constituents of baking powder that makes the dough to rise is __.
39. Which of the following compound is used as a gaseous fuel?
A. CH3 – C = CH
B. CH3 – CH2 – CH3
C. CH3 – CH2 – CH2 – COOH
D. CH3 – CH2 – CH2 – CH3
40. The ability of carbon to form long chains is referred to as __.
41. Which of the following compounds will undergo polymerization reaction?
42. The compound above exhibits __.
A. geometric isomerism
B. optical isomerism
C. structural isomerism
D. positional isomerism
43. An organic compound has an empirical formula CH2O and vapour density of 45.
What is the molecular formula?
[C = 12, H = 1, O = 16]
44. The reaction above represented by the equation above is useful in the production of __.
45. The number of isomers that can be obtained from C4H10 is __.
46. The functional groups present in the compound above are __.
A. alkene and halo-group
B. hydroxyl and chloro-group
C. alkene and chloro-group
D. hydroxyl and halo-group
47. Which of the following is a primary amine?
48. Two organic compounds K and L were treated with a few drops of Fehling's solutions respectively. K formed a brick-red precipitate while L, remains unaffected. The compound K is an __.
49. Which of the following statements is true about 2-methylpropane and butane?
A. They are members of the same homologous series
B. They have the same boiling point
C. They have different number of carbon atoms
D. They have the same chemical properties
The reaction above is best described as __.