Based on Chimamanda Adichie's Purple Hibiscus, Eugene Achike in the novel is portrayed as

• A. a tough retired soldier
• B. a soft and gentle husband
• C. an uncompromising traditionalist
• D. a fanatical Catholic adherent

A public Limited Company whose nominal capital is made up of 400,000 ordinary shares of 50k each, decided to issue 50% of it to the public and realized only 50% of the amount due What is the paid up capital?

• A. #50,000.00
• B. #100,000.00
• C. #150,000.00
• D. #200,000.00

Nationalist activities were earlier in British than in French West Africa because the

• A. French West Africans were not interested in having self government
• B. British colonialists were no longer interested in governing their acquired territories
• C. French administrative polices did not allow for political agitation
• D. nationalists their french counterparts

(a) The specific heat capacity of copper is 400 \(JKg^{-1}K^{-1}\) means that 400 J of heat energy is required to raise (or lower) the temperature of 1 kg of a piece of copper by 1 kelvin.

(b) Experiment to determine the specific heat capacity of copper using a copper ball. The piece of copper ball is suspended by a thread and placed in a beaker of boiling water. While the temperature of the copper is being raised to boiling point of water, a copper calorimeter is half filled with water. The initial temperature of the water is measured and recorded and the hot copper ball is lifted by the thread and transferred to the calorimeter when the water has reached boiling point. The calorimeter cover is put on, the mixture is well stirred and the final steady temperature read from the themometer. The copper ball is weighed either before or after the experiment. The result is tabulated as shown below.

Mass of copper ball - m (kg)

Temperature of boiling water - \(\theta\) (K)

Mass of copper calorimeter - \(m_{c}\) (kg)

Mass of calorimeter + water - \(m_{x}\) (kg)

Mass of water \((m_{x} - m_{c})\) - \(m_{w}\) (kg)

Specific heat capacity - C \((Jkg^{-1} K^{-1})\)

Initial temperature of water = \(\theta_{w}\) (K)

Final temperature of water = \(\theta_{f}\) (K)

Using Heat lost by copper ball = Heat gained by calorimeter + Heat gained by water

\(mc(\theta - \theta_{f}) = m_{c} c (\theta_{f} - \theta_{w}) + m_{w} c_{w} (\theta_{f} - \theta_{w})\)

\(c = \frac{m_{w} c_{w} (\theta_{f} - \theta_{w})}{m (\theta - \theta_{f}) - m_{c} (\theta_{f} - \theta_{w})}\)

Precautions: (i) The copper ball should be transferred quickly into the calorimeter without splashing. (ii) Just before transfer, the copper should be shaken slightly to remove adhering hot water.

(iii) Heat lost by copper ball = heat gained by copper calorimeter + Hoat gained by water.

\(m_{c} (\theta - \theta_{f}) = m c (\theta_{f} - \theta_{w}) + m_{w} c_{w} (\theta_{f} - \theta_{w})\)

\(20 \times 0.4 \times (200 - \theta_{f}) = 60 \times 0.4 \times (\theta_{f} - 30) + 50 \times 4.2 \times (\theta_{f} - 30)\)

\(8(200 - \theta_{f}) = 24(\theta_{f} - 30) + 210 (\theta_{f} - 30)\)

\(\theta_{f} = \frac{8620}{242} = 35.6K\)

In each of the following sentences, there is one word underlined and one gap. From the list of words lettered A - D, choose the word that is most nearly opposite in meaning to the underlined word and that will, at the same time, correctly fill the gap in the sentences.

The goal lifted the team from theagony of defeat to the .......of victory

• A. hope
• B. desire
• C. celebration
• D. ecstasy

Which of the following is not an objective of ECOWAS?

• A. Expansion of trade
• B. Encouraging free movement of persons within member states
• C. Improvement of infrastructural facilities
• D. Promoting a common language

In a dicotyledonous stem, the zone between the epidermis and the pericycle is the

• A. cortex
• B. stele
• C. xylem
• D. ploem

Which of the following statements about silage are true? I. It has a laxative effect II. is acidic in reaction. III. has a strong aroma when well prepared

• A. I and II only
• B. I and III only
• C. II and III only
• D. I, II and III

If 10.5g of lead (II) trioxonitrate (V) is dissolved in 20cm³ of distilled water at 18oC, the solubility of the solute in mol dm^-3 is [Pb = 207, N = 14, O = 16]

• A) 1.60
• B) 5.25
• C) 16.00
• D) 525.00

'All men are from ' Adam and Hawa' and an arab is not superior ro a non- Arab ' was a declaration made

• A. When saalman al faris embraced islam
• B. at the palace of King Negus of Abyssinia
• C. at the Battle of Confederates by the prophet
• D. during the farewell sermon of the prophet