Advanced level 2025 Bamenda archdiocesan mock chemistry 1
Advanced level 2025 Bamenda archdiocesan mock chemistry 1
Questions 1–37 each of the question have four
suggested answers.; Complete the statements with
the correct response.
1 ) The basic hydroxide that will not produce
hydrogen gas when heated
A) sodium hydroxide
B) lithium hydroxide
C) calcium hydroxide
f>) magnesium hydroxide 7) A positive deviations from Raoult’s law could be
obtained from a solution of:
A) methane /water
B) ethanol/water
C) raethanoic acid/water
D) nitric acid/water
2) The pH of aqueous solution of benzoic acid of
concentration
1.OMoldm“3 and Ka= 6.0 x 104 moldm‘3
A) 3.22
B) 4.22
C) 2.11
D) 1.60
3) Given the total bond enthalpy term in KJmor1 for
the following substances; cyclohexene =
+6471
, hydrogen =+436, cyclohexane =+7032.
What would be the enthalpy change for the
reaction
Consider the energy cycle below for sodium
chloride
Na+(g) + Cl‘ (g) –4Q6kjmol– l , Na+(aq)+ CT(aq)
–
| 3J 7kJraoI ^:‘?‘ | A | –787kjmor‘ |
| NaCl(n) | x |
8)
The value for the enthalpy change represented by
X is
A) –1293
B) –1193
e) –1510
D) -713 –
/\
H, +
I A) –997
B) ‘ –125
+997
D) +125
i
9) A solution of O.O5MK2CO3 solution was used for
a titration in which 25cm3 K2C03 solution
required 24.6cm3 of hydrochloric acid. The
concentration of hydrochloric acid used is:
A) 0.005M
B) 0.05M
C) 1.02M
©) 0.102M
4) Which of the following techniques would be
most appropriate in determining the arrangement
of ions in a crystal
A) nuclear magnetic resonances
B) x-rays diffraction
C) mass spectrometer
» £>) infrared spectrometer
10) Which of the following species could function as
a chealating ligand:
A) GO/
B) C103‘
ey NH3
D) H2O
5) Given the data:
| Cu2+(aq) + e’ Cu2+(uq) +2e’ |
> CU+ > CU{S) (aq) |
E6 = +0.34v E° = +0.15v |
front the data above it could be deduce that:
A) the e.m.fofthe cell formed by the two
electrodes is –0.19v
B ) the cell diagram is
CU(i) /Cu2 (»q) // Cu2 (aq), Cu (nq) /Pt
C) the mass of Cii(,j decreases as the cell ^,)
operates
D) Cu+(gq) will disproportionate in aqueous
solution
11) A liquid like water will boil when
A) it vapour pressure is equal to saturated
vapour pressure
B)– it vapour pressure is greater than atmospheric
pressure
C) it vapour pressure is equal to the atmospheric
pressure
D) it saturated vapour pressure is equal to the
atmospheric pressure
