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Q1— Section header —
1.1Indicate whether the following statements are TRUE or FALSE by writing only 'True' or 'False' next to the question number (1.1.1
1.1.5\in the ANSWER BOOK.
1.1.1Fertili ers are substances that are added to soil to make it less fertile.
1.1.2Crops are plants that are grown on a farm or plantation to produce food for people and animals.
1.1.3Arable land is land that is suitable to be farmed.
1.1.4Inorganic fertili ers may cause problems with moisture retention.
1.1.5
1.2List FOUR advantages of inorganic fertili ers. (4\
1.3Name FOUR examples of nitrogen fertili ers. (4\
1.4Name FIVE industrial manufacturers of fertili ers in South Africa. (5\
1.5Foliar fertiliser is much more efficient than other forms of fertilisation. Explain the statement. (3\
1.6Name ONE main problem associated with the use of foliar fertili ers. (1\
1.7Name THREE minerals from which sulphuric acid is obtained. (3\
1.8The wet process can be used in the production of phosphoric acid.
1.8.1List FOUR stages in sequence involved in the wet process for the production of phosphoric acid. (4\
1.8.2Write the chemical formula of gypsum. (2\ [31]31
Q2— Section header —
2.1The raw materials for cement production are made up of two types of rock.
2.1.1Name the TWO types of rock.
2.1.2Differentiate between the TWO types of rock named in QUESTION
2.1.1above. (2 2\ (4\ 6050433
2.2Which substance is used to add strength in cement? Write its chemical formula. (1\
2.3Name the stages involved in a slagment production process in sequence. (5\
2.4Iron ore exists as iron oxides together with silicates and other metal oxides Name and write the chemical formula of THREE most common iron oxides found. (6\
2.5.1Write the chemical formula of slake lime. (1\
2.5.2List THREE industrial applications of slake lime. (3\
2.6Sodium carbonate is a white solid and a strong alkali and it is one the most used chemicals in the world.
2.6.1Write the molecular formula of sodium carbonate.
2.6.2What is the common name of sodium carbonate?
2.6.3Name the most common industrial use of sodium carbonate. (3 1\ (3\
2.7Name TWO industrial application of sodium sulphate. (2\
2.8What is the common name of sodium sulphate? (1\
2.9Name FOUR steps involved in the mining of sodium chloride as a rock salt. (4\ [30]30
Q3— Section header —
3.1Define the following terms:
3.1.1Alkali
3.1.2Hydrocarbons (2 2\ (4\
3.2Name THREE products that are produced by the Colgate Palmolive company. (3\ (6050433\
3.3Write the chemical formula of the following substances that are used as raw materials in the production of soap:
3.3.1Sodium hydroxide
3.3.2Oleic acid
3.3.3Lauric acid (3 1\ (3\
3.4Herbicides are classifi ed by the way they kill plants. Name the THREE classes into which herbicides are classified. (3\
3.5Classify the following insecticides as organic or inorganic:
3.5.1Organophosphate
3.5.2Carbamates
3.5.3Boric acid (3 1\ (3\
3.6Name THREE pesticide manufacturers in South Africa. (3\ [19]19
Q4— Section header —
4.1Name FOUR pulp and paper manufacturers in South Africa. (4\
4.2What is the main source of virgin fibre? (1\
4.3Name the TWO groups of wood. (2\
4.4The Kraft pulp production process has three main steps. Name the THREE main steps. (3\
4.5What is the purpose of supercalendering? (2\
4.6Give THREE examples of coated paper. (3\
4.8Name FIVE techniques that are used to laminate paper. (5\ [20] TOTAL: 10020