Page 24 - Ranger SPM 2022 Chemistry

Chemistry SPM Chapter 2 Carbon Compound

H H
H H & &
n C"C !!C!C!!
& &
H H
H H n
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Comparison between physical and chemical properties of alkane and alkene
Alkane Alkene
Similarities
• Both are hydrocarbons.
• Both have low melting point and boiling point.
• Both are less dense than water.
• Both are insoluble in water.
• Both are soluble in organic solvents.
• Both are non-conductors.
Differences
• Saturated hydrocarbon • Unsaturated hydrocarbon
• Has carbon-carbon single bond • Has carbon-carbon double bond
• Unreactive • Reactive
• Undergoes combustion in oxygen, burns with • Undergoes combustion in oxygen, burns with
less sooty yellow flame more sooty yellow flame
• Undergoes substitution reaction • Undergoes addition reaction
• Does not react with bromine water • Reacts with bromine water
• Does not react with acidified potassium • Reacts with acidified potassium manganate(VII)
manganate(VII) solution solution

Quiz
Quiz Combustion
Quiz
Quiz
of Carbon
What is the chemical substance that can Compounds
differentiate propane from propene? INFO
Form 5
ExpERIMENt 2.1

(A) Reaction with oxygen gas Variables:
(a) Manipulated: Hexane and hexene
Aim: (b) Responding: Sootiness of flame
To study the comparison of sootiness of produced
flames between alkane and alkene during (c) Fixed: Volume of hexane and hexene
combustion.
Procedure:
Hypothesis: 1. 2 cm of hexane is poured into an
3
Hexane produces less sooty flame compared evaporating dish.
to hexene.

153

02.5 RANGER SPM CHEMISTRY 2P.indd 153 29/03/2022 2:28 PM