From the words lettered A to D, choose the word that has the same consonant sound(s) as the one represented by the letter(s) underlined.

reverse

• A. aisle
• B. debrise
• C. cast
• D. boys

The function of the magnanese (IV) oxide in a leclanche cell is to

• A. decrease the e.m.f. of the cell
• B. prevent local action in the cell
• C. prevent polarization in the cell
• D. increase the density of the electrolyte

(a) The elements listed below to the same group in the Periodic Table \(_9F\) \(_{17}CI\) \(_{35}Br\) \(_{53}I\).

(i) Write the electronic structure of the first member

(ii) What is the family name of the elements.

(iii) Which of the elements has the strongest oxidizing ability?

(b) Use the information provided in the following table to answer Questions (i) to (ii) below

(b)(i) Which of the chlorides would exist as discrete molecules?

(ii) What type of bonding holds atoms of A and chlorine together in ACI?

(iii) Which of the chlorides would be a good conductor of electricity?

Vaccination is carried out in order to

• A. check the production of poison
• B. increase the activities of white blood cells
• C. increase the number of red blood cells
• D. stimulate the production of anti-bodies

Ojo lived 1/4 of his life as a boy, 1/5 as a young man and 1/3 as a trader and 13 years as an old man. How old is he?

• A. 48 years
• B. 52 years
• C. 60 years
• D. 78 years

Total production cost- #360,000 Factory overhead cost- #56,000 Selling price per unit- # 120 Production volume 4000 units Determine the value of prime cost

• A. #416,000
• B. #304,000
• C. #240,000
• D. #184,000

Lack of interest in politics by citizens in the country is referred to as

• A. ignorance
• B. apathy
• C. participation
• D. socilization

What is the median of 3, 7, 6, 11, 14, 9?

• A. 11
• B. 9
• C. 8
• D. 7

In a population study using the transect method, a student is likely to record the highest number of species in

• A. a tropical rain forest
• B. a guinea savanna
• C. a sahel savanna
• D. an estuarine swamp

If (x + 1) and (x - 2) are factors of the polynomial \(g(x) = x^{4} + ax^{3} + bx^{2} - 16x - 12\), find the values of a and b.