Activity 2I (Textbook) – Chemistry Form 5 Chapter 2 (Carbon Compound)

Question 1:Copy and complete the tree map by writing the chemical equation for each addition reaction that occurs on ethene, C2H4. Answer:$$ \begin{aligned} &\text { Addition of hydrogen: }\\ &\mathrm{C}_2 \mathrm{H}_4+\mathrm{H}_2 \rightarrow \mathrm{C}_2 \mathrm{H}_6 \end{aligned} $$$$ \begin{aligned} &\text { Addition of halogen, } \mathrm{Br}_2 \text { : }\\ &\mathrm{C}_2 \mathrm{H}_4+\mathrm{Br}_2 \rightarrow \mathrm{C}_2 \mathrm{H}_4 \mathrm{Br}_2 \end{aligned} … Read more

Experiment 2A (Textbook) – Chemistry Form 5 Chapter 2 (Carbon Compound)

Experiment 2A (Comparing Alkane and Alkene):A. Sootiness of FlameAim: To compare hexane, C6H14 and hexene, C6H12 for sootiness of flames during combustion. Problem statement: Do alkanes and alkenes burn with the same quantity of soot? Hypothesis: Hexene, C6H12 burns with a more sooty flame compared to hexane, C6H14. Variable: (a) Manipulated variable : Hexane, C6H14 and hexene, … Read more

Activity 2H (Textbook) – Chemistry Form 5 Chapter 2 (Carbon Compound)

Activity 2H:Conduct this activity in groups.1. Write the balance equation for the combustion of the following alkane:(a) Ethane, C2H6(b) Propane, C3H8(c) Hexane, C6H14(d) Octane, C8H18 2. Based on your knowledge on the reaction between alkane and halogen, discuss how ethane, C2H6 and bromine, Br2 react with the presence of sunlight:(a) Write the equation for each … Read more

Self Assess 2.1 (Textbook) – Chemistry Form 5 Chapter 2 (Carbon Compound)

Question 1:The following figure shows classifications of carbon compounds. Based on the figure above, state the definitions of:(a) Organic compounds.(b) Hydrocarbon and non hydrocarbon.(c) Saturated and unsaturated hydrocarbons. Answer:(a) Carbon compounds are compounds that contain carbon as their constituent element. (b) – Organic compounds that contain only hydrogen and carbon. – Organic compounds that contain … Read more

Laboratory Activity 2A (Textbook) – Chemistry Form 5 Chapter 2 (Carbon Compound)

Laboratory Activity 2A ( Fractional Distillation of Petroleum):Aim: To study the fractional distillation of petroleum Materials: Petroleum and cotton Apparatus: Filter paper, retort stand, thermometer (0 °C − 360 °C), round bottom flask, conical flask, test tube, Liebig condenser, wire gauze, tripod stand, test tubes, evaporating dish, porcelain chips, wooden block and Bunsen burner. Procedure:1. … Read more

Activity 2A (Textbook) – Chemistry Form 5 Chapter 2 (Carbon Compound)

Question 1:Carry out the activity in pairs. Classify the following substances into organic or inorganic compounds:(a) Propanol, C3H7OH (b) Carbon dioxide, CO2(c) Lead(II) carbonate, PbCO3(d) Glucose, C6H12O6(e) Ethanoic acid, CH3COOH Answer:(a) Organic (b) Inorganic(c) Inorganic(d) Organic (e) Organic Question 2:State the term for each of the following statements:(a) Compounds containing the carbon element.(b) Hydrocarbons possessing … Read more

Natural Rubber

Natural Rubber Natural Rubber Natural rubber is a natural polymer. Latex is a milk like liquid that flows out after the bark of the rubber tree is cut. Latex is mixture of rubber particles and water. Formula of natural rubber is (C5H8)n, where n is about 10,000. Monomer of natural rubber is C5H8, known as … Read more