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SS2: CHEMISTRY - 3RD TERM

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  1. Hydrogen and its Compounds | Week 1
    7 Topics
    |
    1 Quiz
  2. Oxygen and its Compounds | Week 2
    7 Topics
    |
    1 Quiz
  3. Halogens, Chlorine and its Compounds | Week 3
    7 Topics
    |
    1 Quiz
  4. Hydrogen Chloride and Hydrochloric Acid | Week 4
    5 Topics
    |
    1 Quiz
  5. Nitrogen and Its Compounds | Week 5
    9 Topics
    |
    1 Quiz
  6. Ammonia | Week 6
    9 Topics
    |
    1 Quiz
  7. Sulphur and its Compounds | Week 7
    13 Topics
    |
    1 Quiz
  8. Hydrocarbons | Week 8
    12 Topics
    |
    1 Quiz
  9. Alkanols | Week 9
    4 Topics
    |
    1 Quiz

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SS2: CHEMISTRY – 3RD TERM Alkanols | Week 9 Properties of Alkanols
Lesson 9, Topic 3
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Properties of Alkanols

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Topic Content:

  • Physical Properties of Alkanols
  • Chemical Properties of Alkanols

Physical Properties of Alkanols:

1. The boiling point of alkanols is always much higher than that of alkanes with the same number of carbon atoms. The boiling points of the alcohols increase as the number of carbon atoms increases.

2. There is the presence of hydrogen bonding in alkanols. The hydrogen bond is set up between the slightly positive hydrogen atoms and lone pairs of oxygen in other molecules. 

3. The low molecular mass of alcohols (methanol to propanol) makes them completely soluble in water. However, solubility decreases as the alcohol becomes bulky. Butanol is not completely soluble in water.

Chemical Properties of Alkanols:

Dehydration of Alkanols:

 

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