Past Questions And Answers
A certain hydrocarbon on complete combustion at s.t.p produced 89.6dm^3 of CO2 and 54g of water. The hydrocarbon should be
- A) C6H6
- B) C4H10
- C) C5H10
- D) C4H6
Which of the following oxides of nitrogen has oxidation number of + 1?
- A. KNO3
- B. N2O
- C. N2O3
- D. NO
Ummi angrily left the HOD's office because?
- A. The HOD disrespected her
- B. He tried to be romantic with her
- C. Ummi assumed he was trying to make a pass at her
- D. He delayed her
The role of science and technology in the development of agriculture includes the following except
- A. provision of insecticides and drugs
- B. provision of good road network
- C. introduction of artificial insemination centres
- D. setting up produce marketing boards
Viruses are economically important because they?
- A. do not have cell structures
- B. can only reproduce inside living cells.
- C. cause diseases in plants and animals
- D. exist as crystals outside living cells
When an atom loses or gains a charge, it becomes an
- A. ion
- B. an electron
- C. a neutron
- D. a proton
The removal of soil or rocks particles by wind or running water is called
- A. weathering
- B. leaching
- C. denudation
- D. erosion
Sea water taken in by a living organism can be recycled into the atmosphere through all the following processes except
- A. transpiration
- B. digestion
- C. excretion
- D. respiration
Calculate the mass of chlorine gas which occupies a volume of 1.12 dm3 a volume of 1.12 dm3 at s.t.p [Cl = 35.5, 1 mole og gas occupies 22.4 dm3 at s. t. p ]
- A. 1.80g
- B. 3.55g
- C. 7.10g
- D. 15.50g
Based on its objectives, the Organization of African Unity can primarily be classified as
- A. a social organization
- B. a political organization
- C. a cultural organization
- D. an economic organization