Halogens 2

CHEMISTRY  SSS2  Second Term

WEEK   5

Halogens 2

Performance Objectives

The student should be able to:

  1. List the compounds of halogens
  2. Give at least three uses of halogens
  3. Explain the laboratory preparation of chlorine


Compounds of halogens

Hydrogen Halides

The halogens all form binary compounds with hydrogen, and these compounds are known as the hydrogen halides: hydrogen fluoride (HF), hydrogen chloride (HCl), hydrogen bromide (HBr), hydrogen iodide (HI), and hydrogen astatide (HAt). All of these except HF are strong chemical acids when dissolved in water. However, hydrofluoric acid does have quite destructive properties towards animal tissue, including that of humans.

When in aqueous solution, the hydrogen halides are known as hydrohalic acids. The names of these acids are as.... View More

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