JSS 3 Chemistry - 3rd Assessment
- 1. 1. ----------- is a dark complex mixture of solid , liquid and gaseous hydrocarbons.
A) Bitumen
B) Crude oil
C) Petroleum
D) Diesel
- 2. 2. Organic compounds made up of hydrogen and carbons only is called
A) Hydrogenation
B) Hydrocarbons
C) Carbonation
D) Petrochemical
- 3. 3. Intermediate raw materials derived from petroleum that are used in the manufacture of fertilisers , plastics solvents and drugs etc are called ----------
A) Carbon black
B) Petroleum
C) Petrochemicals
D) Crude oil
- 4. 4. The following are examples of petrochemicals are the following except --------
A) Ethylene oxide
B) Methanols
C) Petroleum
D) Diesel
- 5. 5. --------- is defined as the negative logarithm of the hydrogen ion to the base of 10.
A) Neutrality
B) Alkalinity
C) Acidity
D) pH
- 6. 6. Calculate the pH of 0.0001M solution of HCL.
A) 4
B) 3
C) -4
D) -3
- 7. 7. One of the following is used as refrigerant.
A) Parrafin wax
B) Vaseline
C) Methyl chloride
D) Pentyl alcohol
- 8. 8. --------- is described as a special talent developed by individual naturally.
A) Skill
B) Job
C) Job acquisition
D) Skill acquisition
- 9. 9. _______ is described as the process of learning to perform a task or function and becoming and expert in it.
A) Skill acquisition
B) Skill
C) Self- employment
D) Job acquisition
- 10. 10. All are reasons for skill acquisition except ------------
A) Job opportunity
B) To be powerful
C) To stay afloat in a competitive economy
D) Self employment
- 11. 11. The substances that are made up of the building blocks of nature called atom is known as ---------
A) Chemicals
B) Mixture
C) Element
D) Compound
- 12. 12. The following are examples of organic chemicals except --------
A) Methane
B) Benzene
C) Ethene
D) Nitrogen
- 13. 13. The following are inorganic chemicals except ---------
A) Ethene
B) Sodium chloride
C) Sodium carbonates
D) Calcium nitrate
- 14. 14. One of the following is an example of hazardous chemicals:
A) Municipal refuse
B) Perfumes
C) Dynamites
D) Carbondioxide
- 15. 15. The following are non hazardous chemicals except ------
A) Biodegradable domestic wastes
B) Soaps
C) Sodium hydroxide
D) Municipal refuse
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