A-level Past Questions and Answers

Past Questions and Answers will go a long way in getting you in the mood and calm you down by exposing you to the patterns of the exams questions. With this, you get to know the structure and how the EXAM QUESTION will look like, which make the exam easy for you.

Another good news is that 60% of these questions are usually repeated or rephrased. So, if you can get hold of the past question and get familiar with it, as said earlier, you are already stepping ahead of passing your course

How is A-LEVEL Past Questions Is Patterned

The Past Questions are patterned as OBJECTIVE AND THEORY questions which is divided into different part. plus practicals for pure science courses. We have made it very easy for you. we bring all the questions for many years and put them together but we indicate the specific years of their occurrence. We provide the correct answers in order to save your time. All you need to do is to devote quality time to study the Past Questions in PDF Format and watch yourself change the narrative by scoring better than you expected.

The standard of candidates’ answers was generally high, with a good grasp of straightforward equations.
Some candidates, however, wrote disappointing answers to the questions on Organic Chemistry.
Comments on specific questions

SAMPLE QUESTIONS For A-LEVEL EXAMS

Question 1
(a)(b) These two sections are introductory, and were expected to be high scoring. The diagram in section
(b) needed to show a regular arrangement of alternatively charged ions.
(c) Lime absorbs CO2 and H 2O vapour from the air, a good example being concrete and cement
making, or from horticulture. The candidates did well, possibly thinking about what gases react
with CaO or Ca(OH)2. The Examiners accepted ‘steam’ for water vapour. However, SO2 is not
really a gas of the air, and was allowed one mark only for an equation.
Question 2
(a)(i) The idea of what is meant by dynamic equilibrium needs to be taught. Vague answers are never
satisfactory.
(ii) Diagrams tended to omit essential points, chiefly the labelling of the two peaks of the different
activation energies.
(c) The calculation seldom scored full marks. Some candidates omitted the water concentration, i.e.
[H2O] = 1 mol dm−3 initially. Also, many candidates failed to see that the equilibrium concentration
[H2O] = 1.57 mol dm −3. The method of ‘error carried forward’ was applied as usual, using the
candidates’ answers to part (i) to determine a Kc value in part (ii). Jamb Result

Question 3
This question was about halogen chemistry, starting with Inorganic and ending with Organic Chemistry. Part
(a) was ‘knowledge’ or ‘practical experience’, part (b) was ‘explanation’ and part (c) was ‘equations’. The
answers to the equations in part (c) still fell short of the Examiners’ expectations. The mechanism of the
electrophilic addition of bromine to ethane was well learnt, and proved high scoring.

Question 4
There were good answers to this question, showing understanding of oxidation numbers and the role of
nitrogen in soil. In part (c)(i), calculating [H +] from pH values is not in the syllabus for AS Level, to
compensate candidates an extra mark was added to part (e). The usual and expected answer to part (c)(iii)
was lime, but ammonia was accepted.

Question 5
(a) Good answers were given for the structures, and alternatives were accepted for parts (ii) and (iv).
This made the marking of the rest of the question both flexible and open.
(b) Orthodox answers to this part would describe and explain optical isomerism, but answers which
described structural isomerism were given full marks. For example, using the two structures for
part (a)(ii) as follows.
CH3(CH2)9CHBrCH3 and CH3(CH2)9CH2CH2Br. Pounds to Naira