Which process(es) is/are involved in the turning of starch iodide paper blue-black by chlorine gas?

• A) chlorine attacks the starch to give the blue-black color
• B) chlorine attacks the iodide ion to give the blue-black color
• C) chlorine oxidizes the iodide ion to produce iodine which attacks the starch to give the blue-black color
• D) iodine attacks the starch to give the blue-black color

Based on General Literary Principles

A melodramatic play is based on

• A. a melodious manipulation of events
• B. ingredients that mellow down events
• C. sensational plot and characters
• D. the playwright's didactic overtones

One of the objectives of the indigenisation programme of the Federal Government of Nigeria is to?

• A. encourage the use of local raw materials
• B. expel all foreigners from Nigeria
• C. make Nigeria businessmen very rich
• D. maximize local retention of profits

Who is the father of nationalism in Nigeria?

• A. Obafemi Awolowo
• B. Nnamdi Azikiwe
• C. Hebert Macaulay
• D. Ahmadu Bello

A change in the temperature of a saturated solution disturbs the equilibrium between the

• A. Undissolved solute and the solvent
• B. Dissolved solute and the solvent
• C. Dissolved solute and the undissolved solute
• D. Dissolved solute and the solution

country is said to be overpopulated when

• A. the resocurce are more than enough to cater for the population
• B. the size of the population is greater than the annual budget
• C. the resources are inadequate to cater for the population
• D. there are too many able-bodied men and women in the country

Which of the following statements is true of free software? It

• A. can be borrowed freely.
• B. is a low-cost software:
• C. is a free unlicensed software.
• D. is a licensed software with permission to copy freely.

Items in the bank statement of a business but not in the cash book before preparation of bank reconciliation statement do not include?

• A) Bank charges
• B) Standing order
• C) presented cheque
• D) interest on overdraft

The reforms of King Josiah were made possible by the

• A. discovery of the book of the law
• B. encouragement he received from Hezekiah
• C. sacrifices he made to God
• D. destruction of the chariots of Ahaz

The ages of a group of athletes are as follows: 18, 16. 18,20, 17, 16, 19, 17, 18, 17 and 13. (a) Find the range of the distribution.

(b) Draw a frequency distribution table for the data.

(c) What is the median age?

(d) Calculate, correct to two decimal places, the;

(i) mean age:

(ii) standard deviation.