2. Which of the following sugars is a product of condensation of mono saccharides?

A. Galactose
B. Maltose
C. Glucose
D. Fructose

3. The cleansing effect of soap is low in acidic water because

A. The formation of unionized fatty acid.
B. Increase in the pH of the soap molecule.
C. Anti-biodegradable effect of hydrogen ions.
D. The hardness of acidic water

4. The following compound are condensation polymers except

A. Nylon
B. Protein.
C. Starch
D. Polythene

5. What amount of energy is required to deposit one mole of aluminium from a solution of AlCl₃?

A. One Faraday
B. One Ampere
C. Three Faradays
D. Three Amperes

6. Which of the following compounds would react rapidly with bromine?

A. Benzene
B. Hexane
C. Hexene
D. Hexanol

7. Alkanols can be manufactured from alkenes by the initial reaction of alkenes with

A. Bromine in tetrachloromethane
B. Concentrated tetraoxosulphate (VI) acid
C. Aqueous potassium tetraoxomanganate (VII).
D. Sodium hydroxide solution.

8. Which of the following statements about the standard hydrogen electrode is not correct?

A. The hydrogen gas is at pressure of 1 atmosphere
B. A solution containg 1 moldm^-3 of H^-3_(aq) ions is used
C. A platinum. Electrode is used
D. The temperature is kept at 20℃

9. If 60g of M combines with 24g of oxygen, what would the empirical formula of the oxide be? [O=16.0,M=120]

A. MO
B. MO₂
C. MO₃
D. MO₄

10. The products of the electrolysis of dilute sodium chloride using carbon electrodes are

Anode	Cathode
A. Chlorine      and	Sodium
B. Oxygen       and	Hydrogen
C. Chlorine      and	Hydrogen
D. Hydrogen    and	Oxygen

11. Determine the quantity of electricity used when a current of 0.20 amperes is passed through an electrolytic cell for 60 minutes

A. 12C
B. 120C
C. 360C
D. 720C

12. Oxochlorate (I) acid is used as a bleaching agent because it is

A. A weak acid
B. A reducing agents
C. An oxidizing agent
D. A strong acid

13. The IUPAC name for CH₃CHCH₃CH-ClCHCH₃CH₂CH₃ is

A. 2,4-dimethyl-3-chlohexane
B. 3,5-dimethyl4-chlorohexane
C. 4-chloro-3,5-dimethylhexane
D. 3-chloro-2,4-dimethylhexane

14. A colorless gas with a pungent smell acid is added to a sample of salt. The gas evolved could turn.

A. Acidified K₂Cr₂O₇ solution colorless

C. Fe(NO₃)₂ solution green
D. Pb(NO₃)₂ Paper black

15. If 5.0g of marble reacts with 25.0cm³ hydrochloric acid, which of the following combination has the fastest reaction rate?

A. Marble chips and 2.0 moldm^-3 HCL
B. Marble chips and 2.5moldm^-3 HCL_(aq)
C. powdered marble and 2.5moldm^-3 HCL_(aq)
D. powdered marble and 2.0 moldm^-3 HCL_(aq)

16. Increasing the temperature generally

A. Decrease the solubility of a solid in a liquid but increases the solubility of a gas in a liquid
B. Increases the solubility of a solid in a liquid but decreases the solubility of a gas in a liquid
C. Increase the solubility of both a solid and a gas in a liquid
D. Decreases the solubility of both a solid and a gas in a liquid

17. A white precipitate was formed when BaCl_2(aq) was added to an aqueous solution of a salt X. The precipitate dissolves in dilute HCL with rapid effervescence. Salt X is likely to contain.

A. SO₄^2- ions
B. SO₃^2- ions
C. NO₃^- ions
D. 𝐶𝑂₃²⁻𝑖𝑜𝑛𝑠

18. Before a reaction can take place, there should be a

A. Ionization of reactant particles
B. Breaking of bonds of products
C. Breakage of bonds of reactants
D. Ionization of product particles

19. Consider the following reaction equations:
CaO + SiO₂ ⟶ CaSiO₃ Silicon (IV) oxide is acting as

A. A basic oxide
B. A reducing agent
C. An acidic oxide
D. An oxidizing agent

20. Which of the following acids will form normal salt only?

A. Tetraoxosulphate (IV) acid
B. trioxonitrate (V) acid
C. Tetraoxophosphate (V) acid
D. Trixosulphate (IV) acid

21. What is the partial pressure of oxygen at S.T.P. in a gaseous mixture containing 100cm³ of oxygen and 900cm³ of nitrogen gas?

A. 1.0atm
B. 0.1atm
C. 9.0atm
D. 0.9atm

22. Graphite is used as a dry lubricant due to the presence of

A. Mobile electron
B. Free electrons
C. Octahydra structures
D. Layered structures

23. Which of the following gases is alkaline

A. NO₃
B. CO₂
C. NH₃
D. N2_O

24. Which of the following statement about an equilibrium system is correct?

A. Forward and backward reaction occur at the same rate
B. The concentration of reactant must equal that of the product
C. The concentration of reactant and product can be changed by adding a catalyst
D. The conc. Of reactant and products are not affected by a change in temperature

25. Consider the following reaction equation:
N_2(g)+3N_2(g)⇌ 2NH_3(g); ∆H=-92kJ. Increasing the temperature of the reaction would

A. Shift the equilibrium to the right
B. Increase the yield of ammonia
C. Decreases the amount of hydrogen
D. Decrease the yield of ammonia

26. When air in a syringe is compressed such that there is no change in temperature, the

A. Air liquifies
B. Pressure increases
C. Intermolecular space increases
D. Density decreases.

27. Which of the following statement about liquid is/are true?
I. Liquid maintain their volume at constant temperature
II. Liquid have fixed shape
III. Liquid do not diffuse
IV. Change in pressure affects the volume of liquid

A. I only
B. IV only
C. I and IV only
D. II and III only

28. A hydrogen chloride gas reacted with oxygen gas to yield water and chlorine gas. The ratio of the hydrogen chloride gas to water is

A. 1:3
B. 2:1
C. 3:1
D. 4:1

29. What number of moles of oxygen would exact a pressure of 10atm at 320 K in an 8.2 dm³ cylinder? [R=0.082 atm dm³mol^-1 ].

A. 0.32
B. 1.52
C. 3.13
D. 31.25

30. If 50cm³ of a saturated solution of salt of KNO₃ at 40℃ contained 5.50g of the salt the solubility at the same temperature would be [KNO₃ = 101].

A. 1.0moldm^-3
B. 1.5moldm^-3
C. 2.0 moldm^-3
D. 5.0moldm^-3

31. Which of the following elements would displace copper from the solution of copper ions?

A. silver
B. Gold
C. Lead
D. Mercury

32. What is the percentage composition of Carbon in Ca(HCO3)2? [Ca=40.0,O=16.0,C=12.0,H=1.0]

A. 22.2%
B. 14.8%
C. 1.4%
D. 3.7%

33. Which of the following bond types is intermolecular?

A. Covalent bond
B. Hydrogen bond
C. Ionic bond
D. Metallic bond.

34. The maximum number of covalent bonds formed by nitrogen is

A. 1
B. 2
C. 3
D. 4

35. The IUPAC name of the compound CH₃CH(CH₃) CHCH₂ is?

A. 2-methylbut-1-ene
B. 2-methylbut-2-ene
C. 3-methylbut-1-ene
D. 3-methylbut-2-ene.

36. Ionization energy increases across the period in the periodic table because

A. Atomic number increases
B. Effective nuclear charge increases
C. Mass number decreases
D. Screening effect decreases

37. Which of the following properties indicates that an element is a metal.
I. Reacts with oxygen to form an acidic oxide.
II. Forms ionic chlorides.
III. Has variable oxidation states.
IV. Displaces hydrogen from dilute HCL?

A. I and III only
B. I and II only
C. I and IV only
D. I , II, III and IV

38. The electronic configuration of carbon atom in its exerted states is its

A. 1s²2s²2p_x²2p_y⁰
B. 1s²2s²2p_x¹2p_x¹
C. 1s²2s¹2p_x¹2p_y¹2p_z¹
D. 1s¹2s²2p_x¹2p_y¹2p_z¹

. 39. An oxide has the following properties.
I. it is a white powder.
II. Reacts with HCL.
III. Reacts with NaOH.
IV. It is insoluble in water. The oxide is

A. Alkaline
B. Amphoteric
C. Acidic
D. neutral

40. Which of the following stamen about atoms of a metal is correct? They

A. Readily accept electron
B. Are soft
C. Are held together by covalent bonds
D. Are held together by sea of electron cloud

41. Which of the following sketches is graphic representation of Boyle’s law?

42. The atom with electron configuration 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²3p⁴ is an

A. Period 4, p-block
B. Period 3, p-block
C. Period 4, d-block
D. Period 3 d-block

43. Electro positivity of elements across the periodic table normally

A. Remains constant down the group
B. Increases across the period
C. Decreases across the period
D. Decreases down the group

44. Consider the following table

Substance	Melting Point/℃	Boiling point/℃
P	-78	-25
Q	-8	40
R	-6	150
S	44	280

44. Which of the substances is a liquid at room temperature and rapidly evaporates on exposure to air?

A. P
B. Q
C. R
D. S

45. Which of the following oxide is amphoteric

A. Carbon (II) oxide
B. Nitrogen (IV) oxide
C. Lead (II) oxide
D. Calcium Oxide

46. Which of the following processes occur during fractional distillation of petroleum?

A. Condensation and diffusion
B. Diffusion and evaporation
C. Diffusion and sublimation.
D. Evaporation and condensation

47. If the molar mass of X (HCO₃)₂ is 162g mol^{-1, determine the relative atomic mass of X. [H=1.0, C=12.0, O=16.0]}

A. 40
B. 48
C. 61
D. 101

48. Charcoal is used in the decolorization of sugar because of its

A. Absorption properties
B. Amorphous properties
C. Oxidizing properties
D. Adsorption properties

49. The first definition of an element was made by

A. J Dalton
B. A. Lavoisier
C. R. Boyle
D. J.J. Thompson

50. Which of the following scientists formulated the law of conservation of mass?

A. A. Lavoisier
B. J. Dalton
C. R. Boyle
D. J. Proust