Past Questions And Answers
The oxidation number of iodine in KIO3is
- A) +7
- B) +3
- C) +5
- D) +6
Synonym: FAVOURITISM
- A. Nepotism
- B. Hooliganism
- C. Capitalism
- D. Socialism
The American General who led the revolt against the British & declared American independence was
- A. George Washington
- B. Bill Clinton
- C. George Bush
- D. Abraham Lincoln
(a)(1) Define each of the following terms: I. deliquescence; II. efflorescence.
(ii) Give one example I substance that undergoes each of the processes in (a)(i).
(b) Outline how three colourless gases suspected to be ethane, ethene and ethyne could be distinguished in the laboratory.
(c)(i) What is water crystallization?
(ii) Hydrated calcium chloride (CaCl\(_2\) = 111, xH\(_2\)O) contains 49.32% water of cystallization. Calm the value of x. [ (CaCl\(_2\) = 111, H\(_2\)O = 18 ]
(d) Name one calcium compound used (i) in the manufactur cement; (ii) as a dessicant; (iii) in the production of plaster of Paris (POP);
(iv) to neutralise acidic soils
(e) A concentrated solution of sodium chloride was electrolysed using graphite electrodes.
(i) State the ions present in the solution
(ii) Name the products at the I. anode, II. cathode.
(iii) Give the by-product of the electrolysis.
View Discussion (0)WAEC 2009 THEORYFrom the words lettered A to D below each of the. following sentences, choose the word or group of words that is nearest in meaning to the underlined word as it is used in the sentence
The aggrieved faction held aclandestine meeting.
- A. secret
- B. quiet
- C. quick
- D. brief
An electric iron is rated 1000W, 230V. What is the resistance of its elements?
- A. 51.9Ω
- B. 52.9Ω
- C. 55.9Ω
- D. 57.6Ω
Which of the following is the safest means of sending a postal order from Lagos to a friend in Jos?
- A. Special delivery
- B. Recorded delivery
- C. Registered letters
- D. First class mail
Dispersed rural settlements are most likely to be found in areas with?
- A. abundant agriculture land and good surface drainage
- B. limited agricultural land and poor surface drainage
- C. a large agricultural population and restricted accessibility
- D. a small agricultural population and poor surface drainage
A manufacturer can make his product distinguishable from those of other competitors by
- A. providing catalogues for his wholesalers
- B. aggressive sale ppromotion
- C. branding and packaging the product
- D. selling the product at a much lower price
NON — AFRICAN PROSE
WILLIAM GOLDING: Lord Of The Flies
Comment on Jack's leadership style
View Discussion (0)WAEC 2012 THEORY