Cameroon GCE advanced level June 2025 chemistry 1
Cameroon GCE advanced level June 2025 chemistry 1
Questions 1-35 (thirty five questions)
Directions: Each of the questions or
incomplete statements in this section is
followed by four suggested answers. Select
the best answer in each case.
What will be the number of moles of
bicarbonate ions ( HCO3 ) in 24.6 g of
Ca(HC03)2 (RMM Ca(IIC03)2 = 122)
A 0.4
B 0.2
C 2.43 xlO23
D 1.21 x 10”
Identify the particle X in the following
nuclear reaction:
13 AAI +ioNe Jn —> X + ^He
B 24Mg
C f 4Na
D 23Na
6.
1. Choose from the options a compound of
the group 14 (IV) elements that will react
readily with both aqueous NaOH and dilute
HC1?
A CO ‘
B C02
C Si02
D PbO
7.
2. Which of the following substances is
suitable for use as a primary standard?
A Ca(OH)2
B NaOH
C Na2C03
D CaC03
Which of the following pairs of compounds
would undergo a condensation reaction?
A water/ethanol
B Phenol/Pheylamine •
C Ethanal /ethylamine
D ethanol/2,4-DNPH
8.
3. Identify the compound which will form an
alcohol on boiling with aqueous sodium
hydroxide.
A CH3COOH
B C6H5CH2OH
C CH3CH=CH2
D CH3CH2C1
Calculate the volume of 0.5 M NaOH which
is needed to completely neutralize 25.0 cm3
of 0.25 M HC1.
A 6.25 cm3
B 12.5 cm3
C 25 cm3
D 50 cm3
9.
Choose the correct expression for the partial
pressure of methanol in a mixture comprising
1.75 moles of methanol and 1.25 moles of
ethanol given that the vapour pressure of pure
methanol is 92 mmHg and vapour pressure of
pure ethanol is 67 mmHg.
x 67
B ^1^xx 92 92
4.
10. Transition metals form complexes with
ligands because
A They have lone pairs of electrons
B They have catalytic properties
C They have high charge density
A HI D They have low energy empty orbitals
1 1 . What is the pH of a 0.2 M NaOH solution
A 13.3
B 12.4
C 1.6
D 0.7
C
1.75
D HI
x 67
1.25
Indicate the type of isomerism that exist
between: CH3-0-CH3 and CH3CH 2OH
A Position isomerism
B Optical isomerism
C Geometric isomerism
D Functional group isomerism
5.
12. Which spectroscopic technique can be used
to identify Protons in an organic compound?
A Infra-red spectroscopy
B Ultra-violet spectroscopy
C Nuclear magnetic resonance
spectroscopy
D Mass spectroscopy
