A student spent 1/5 of his allowance on books, 1/2 of remainder on food and kept the rest for contingencies. What fraction was kept?

• A. 7/15
• B. 8/15
• C. 2/5
• D. 4/5

(a)(i) What is meant by hydrocarbons?

(ii) A hydrocarbon consists of 92.3% carbon. If it's vapour density is 39, determine its molecular formula. (H = 1; C = 12)

(b)(i) Outline a suitable laboratory procedure for obtaining ethanol from cassava tubers

(ii) List two laboratory reagents used for oxidizing ethanol to ethanoic acid.

(c) What name is given to each of the following processes?:

(i) Conversion of alkanols to alkanoates;

(ii) Breakdown of proteins to amino acids;

(iii) Conversion of oils to fats

(iv) Alkaline hydrolysis of fats and oils.

The British government took over the control of the Colony of Sierra Leone in 1807 in order to use it as a

• A. major trading port in the West African region
• B. centre for the spread of British culture
• C. base for anti-slave trade naval patrol
• D. base to penet West African interior.

Monetization refers to the ratio of?

• A. total transactions to monetary transactions
• B. monetary assets to total assets
• C. monetary transactions to total transactions
• D. money in circulation to total income

These question are based on selected poems from Johnson, R. et al (eds.): New Poetry from Africa; Soyinka, W. (ed.): Poems of Black Africa; Senanu, K.E. and Vincent, T. (eds): A Selection of African Poetry; Umukoro M. et al: Exam Focus: Literature in English; Eruvbetine, A.E. et al (eds.): Longman Examination Guides: Poetry for Senior Secondray Schools NWOGA, d.i. (ED.) West African Verse.

Jared Angira is an African Poet from

• A. Ghana
• B. Sierra-Leone
• C. Kenya
• D. South Africa

Find the maximum value of \(2 + \sin (\theta + 25)\).

• A. 1
• B. 2
• C. 3
• D. 4

The pH of four solutions M,N,Q and R are 2,6,8 and 11 respectively. Which of the following deductions about the solutions is correct?

• A. The pH of N is increased when the solution is diluted
• B. The pH of Q is increased when the solution is evaporated
• C. M is the most alkaline solution
• D. R is the most acidic solution

The following are output devices except:

• A) Mouse
• B) Plotter
• C) Printer
• D) Speakers

Which of the following sets of rocks is organically formed?

• A. Rock salt, breccia and conglometerate
• B. Clay, mudstone and sandstone
• C. peat, chalk and limestone
• D. Girt, coal and shale

Two magnets are used to magnetize a soft iron bar PQ as illustrated in the diagram given. The correct polarity at P and Q respectively

• A. S and N
• B. N and N
• C. S and S
• D. N and S