1. The shape of CH4 is

A. linear

B. Planar

C. Pyramidal

D. tetrahedral


2. The crystal layers in graphite are held together by

A. covalent bond

B. electrostatic forces

C. ionic bond

D. van dar waal’s forces


3.  Hydrogen bonds are formed between molecules containing Hydrogen atom bonded to a

A. strongly electronegative atom

B. non-polar species

C. diatomic element

D. complex ion


4. The two elements 11X and 19Y are in the same group because they have the same

 A. valence electrons

B. ionization energy

C. number of shell

D. atomic size


5. Which of the following processes is used in food preservation in an industry?

A. carbon dating

B. Irradiation of gamma rays

C. Nuclear fission

D. Nuclear fusion


6.Which of the following arrangement is in decreasing order of atomic radius?

A. Li > Be > C > B

B. Li > B > Be > C

C. Li > Be > B > C

D. C> B > Be > Li


7. The electron configuration of 26Fe3+

 A. [Ar] 4s2 3d6

B. [Ar] 4s2 3d3

C. [Ar] 4s1 3d4

D. [Ar] 4so 3d5


8. Which of the following transition metals is not attracted to external magnetic field/

A. Cu

B. Fe

C. Ti

D. Zn


9. An atom W has 17 electrons and 18 neutrons. Which of the following representation of the atoms is correct?

A. $_{18}^{17}W$


C. $_{17}^{35}W$

D. $_{18}^{35}W$


10. The relative atomic mass of chlorine is not a whole number because

A. it is weighted average mass of all its various isotopes

B. It is the average mass of all the isotopes of the element

C. the element has strong oxidizing ability

D. the atom contains a higher number of neutrons than protons


11. NH4+ is formed  from NH3 and H+ by

A. covalent bonding

B.  dative bondig

C. hydrogen bonding

D. ionic bonding


12. How many lone pair(s) of electrons is present in HF?

A. 0

B. 1

C. 2

D. 3


13. An aqueous solution Na2CO3 is

A. acidic

B. alkaline

C. amphoteric

D. neutral


14. A gaseous mixture contain 0.256g of hydrogen and 2.00g of oxygen. The mole ratio of hydrogen to oxygen in the mixture is

A. 1:1

B. 2:1


D. 8:1


15.If 0.20mol dm–3NaOH(aq) was evaporated to yield 5.0g of solid NaOH, calculate the volume of NaOH(aq) used [ Na=23.0, O =16.0]

A. 600cm3

B. 652cm3

C. 1000cm3

D. 1600cm3


16.  The oxidation number of sulphur in Fe2(SO4)3 is

A. +2

B. +3

C. +4

D. +6


17. The mass 800cm3 of a gas Q at s.t.p is 1.0g. What is the molar mass of Q?

[Avogadros constant =22.4 dm3mol–1]

A. 18.0 g mol–1

B. 22.4 g mol–1

C. 28.0 g mol–1

D. 36.0 g mol–1


18. A compound U melts at 82oC and boils at 113oC. If U was found to be insoluble in water, a mixture of U in water could best be separated by

A. chromatography

B. sublimation

C. filtration

D. the use of separating funnel


19. The following set-up can be used to demonstrated





A. Diffusion 

B. dissolution

C. evaporation

D. sublimation


20. Which of the following  statement about a chemical syste, in equilibrium, is correct? The

A. reaction is irreversible

B. reaction goes to completion

C. equilibrium is re-established when a stress is applied

D. equilibrium, is affected by a catalyst


21.  Which of the following relationships correctly expresses the Boyle’s law?

A. \[P\propto V\]at constant

B. $V\propto T$ at constant P

C. $P\propto \frac{1}{V}$ at constant T

D.  $V\propto \frac{1}{T}$ at constant P


22. The vapour pressure of a given volume of liquid increases when the

A. liquid becomes saturated with a salt

B. volume of the liquid increases

C. temperature of the liquid falls

D. temperature of the liquid rises


23. Which of the following statement about volatile liquids is corrects? They are

A. high vapour pressure and low boiling point

B. high vapour pressure and high boiling point

C. low vapour pressure and low boiling point

D. low vapour pressure and high boiling point


24. The type of energy changes that accompany the mixing of a strong acid to a strong base is

A. electrical

B. heat

C. light

D. sound


25. Zinc oxide is said to be atmospheric because it

A. forms an acid salt

B.is an insoluble base

C. form a double salt

D. reacts with a base or an acid


26. Which of the following substance with the corresponding pH value is an alkali?

Substance                    pH

A. Lime                       2.4

B. Banana                   4.6

C. Distilled Water       7.0

D. Milk of Magnesia   10.5


27.The gases produced when Cu(NO3)2(aq) was heated are

A. NO and NO2

B. O2 and NO2

C. O2 and NO

D. NO2 and N2O4


28. Which of the following salts on hydrolysis would give an alkaline solution?


B. AlCl3(s)

C. CH3COONa(s)

D.  NH4NO3(g)


29. Consider the reaction represented by the following equation

$N{{a}_{2}}C{{O}_{2(aq)}}+2HC{{l}_{(aq)}}\to 2NaC{{l}_{(aq)}}+{{H}_{2}}{{O}_{(l)}}+C{{O}_{2(g)}}$

What volume of 0.02mol dm–3 Na2 CO3(aq)  would be required to completely neutralize 40 cm3 of 0.10 mol dm–3HCl(aq)?

A. 200cm3

B. 100cm3

C. 40cm3

D. 20cm3


30. In which of the following experiment set-ups would the rate of evolution of hydrogen gas be fastest?





31. Which of the following factors would affect the equilibrium constant?

A. Concentration

B. Temperature

C. Pressure

D. Volume


32. Consider the following energy profile diagram of exothermic reaction



The enthalpy change ΔHθ is

A. 120KJ mol–1

B. 80 KJ mol–1

C. 60KJ mol–1

D. 40KJ mol–1


33.  Consider the reaction represented by the following equation:

${{N}_{2(g)}}+3{{H}_{2(g)}}\rightleftharpoons 2N{{H}_{3(aq)}};\text{   }\Delta {{H}^{\theta }}=-xKJ\text{ mo}{{\text{l}}^{-1}}$

 Which of the following conditions would increase the yield of NH3?

A. Addition of iron catalyst

B. Increase in the temperature of the system

C. Increase in the volume occupied by reactant

D. Increased in the total pressure of the system


34. What is the function of manganese (IV) oxide in the reaction represented by the following equation?

$Mn{{O}_{4}}+4HCl\to MnC{{l}_{2}}+2{{H}_{2}}O+C{{l}_{2}}$

A. Catalyst

B. Dehydrating agent

C. Oxidizing agent

D. Reducing agent


35. The reaction that occurs at the anode when CuSO4(aq) is electrolyzed using carbon electrode is

A. $2{{H}^{+}}_{(aq)}+2e\to {{H}_{2(g)}}$

B. $C{{u}^{2+}}_{(aq)}+2e\to C{{u}_{(s)}}$

C.$4O{{H}_{(aq)}}-4e\to 2{{H}_{2}}{{O}_{(l)}}+{{O}_{2(g)}}$

D. $SO_{4(aq)}^{2}-2e\to S{{O}_{2(g)}}+{{O}_{2(g)}}$


36. Reduction is the process of

A. loss of electron

B. loss of hydrogen

C. loss of oxygen

D. addition of electronegative elements


37. Ethene molecule can be added to one another to form a long chain compound called a

A. dimer

B. monomer

C. polymer

D. trimer


38. Which of the following determines the octane rating of petrol

A.. 1, 2, 3 – trimethyl pentane

B. 2, 3, 5 – trimethyl octane

C. 2, 3, 5 – trimethyl pentane

D. 2, 2, 4 – trimethyl pentane


39. Which type of reaction is illustrated by the following equation?

${{C}_{12}}{{H}_{26}}\to 5{{C}_{2}}{{H}_{4}}+{{C}_{2}}{{H}_{6}}$

A. Addition

B. Cracking

C. Hydrogenation

D. Polymerization


40. The IUPAC name of the following organic compound is HOOC – COOH

A. ethan–1,2–dioic acid

B. ethanoic acid

C.oxalic acid

D. Propan–1,2–dioic acid


41.  The enzyme that catalyses the conversion of glucose to ethanol and carbon(IV) oxide is

A. diastase

B. maltase

C. ptyalin

D. zymase


42. A colourless  hydrocarbon with sweet smell undergoes substitution reaction. The hydrocarbon is likely to be

A. alkanol

B. benzene

C. ester

D. methane


43. Consider the reaction represented by the following equation:

${{C}_{2}}{{H}_{4(g)}}+3{{O}_{2}}\to 2C{{O}_{2(g)}}+2{{H}_{2}}{{O}_{(g)}}$

How many moles of ethenes would be burnt to produce 0.1 mole of water?

A. 0.05 mole

B. 0.10 mole

C.0,20 mole

D. 2.00 moles


44. The liquid hydrocarbon likely to be found in the fraction of crude oil used for domestic cooking is

A. C3H6

B. C5H12

C. C13H28

D. C20H42


45. Which of the following organic compounds could be represented by the empirical formula CH2O?

A. Ethanal

B. Ethane

C. Ethanol

D. Ethanoic acid


46. The production of biogas from the fermentation of waste material is an example of

A. combustion

B. incineration

C. refining

D. recycling


47. The purity of a solid sample can best be determine by its

A. boiling point

B. melting point

C. conductivity

D. solubility


48. Which of the following gases is used to retard the vaporization of the filament in a light bulb

A. Argon

B. Helium

C. Hydrogen

D. Oxygen


49. The most common process in the extraction of metal from their ore is

A. Catalysis

B. electrolysis

C. oxidation

D. reduction


50. The oxide from electric power station is

A. Carbon(IV) oxide

B. copper(II) oxide

C. nitrogen (IV) oxide

D. sulphur (IV) oxide