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Group 1 : The Alkali Metals
Group 1 : The Alkali Metals : Precipitate Reactions
Alkali metal hydroxides can be used to test the identity of metals in certain salts.
The colour of the precipitate will help identify the metal :
1.Sodium hydroxide with calcium sulfate
No precipitate is formed since calcium hydroxide is soluble in water.
2. Sodium hydroxide with iron III chloride
A red-brown precipitate is formed.
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