Ordinary level 2025 Bamenda archdiocesan mock chemistry 1
Ordinary level 2025 Bamenda archdiocesan mock chemistry 1
1j. 4( 1tiC._ Cuuipuutiu .. t T— J rA‘liimivmiuiu MMtlarvt 0juipiuiv » %1r*V» #» r% in 10
commonly used as
A) a fungicide
B) a detergent
C) a fertibzer
D) an antiseptic
4 Which of the following is NOT a subatomic
particle?
A) Proton
B) Neutron
C) Nucleon
D) Electron
5. House hold salad cream has a pH of 5. The salad
cream is
A) basic
B) acidic
C) neutral
D) alkaline
6. Hydrogen gas is collected in the laboratory by
A) upward delivery
B) downward delivery
C) upward displacement
D) over water
7. Deposition is a change of state from
A) gas to solid
B) gas to Liquid
C) solid to gas
D) liquid to gas
8. Which of the following has a bent shape.
A) Water
B) Oxygen molecule
C) Hydrogen molecules
D) Carbondioxide
9. What name is given to the reaction that occurs
when Hydrochloric acid reacts with Potassium
Hydroxide?
A) Dissociation reaction
B) Displacement reaction
C) Neutralization reaction
D) Hygroscopic reaction
1.
C)
D) Addition
II. Identifyanother isotope of JjX
A) \X
B) ‘:X
C) ‘2X
D)‘2X
int of water is due to?
12. The high boiling poi
A) Its polar nature
B) Covalent bonding
C) Van der Waals forces
D) Hydrogen bonding
13. Sodium hydroxide is produced industrially by
A) Hydrogenation
B) Electrolysis of Brine
C)Bosch process
D) Haber process
14. Mathematically, Boyle’s Law can be represented
as
A) P <x 1/v
B) P <x V
C) VtxT
D) T cx 1/v
15. Element A combines chemically with element B
to form AB3. Choose a pair of electron
configurations that represent A and B.
Element B
2 , 5
2 , 8 , 7
2 , 3
Element A
A) 2, 8, 1
B) 2 , 8 , 3
C) 2 , 8
D) 2, 8,4
16. A reaction between Magnesium ribbon and
hydrochloric acid is represented by
The M&»rate ) + 2of HCU the reaction –^MgCljf will ^j)be + Haffected ^g). by
A) Presence of catalyst
B) Surface area of solid magnesium
C) Pressure changes
D) Light intensity
17. A hydrocarbon contains 9.25g of carbon and
0.75g of hydrogen. The empirical formula of the
compound is (RAM, C=12 H=^l)
A) CI-L
B) CH
C) C2H2
D) C2H,
