Group 7: Halogens
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What are the colours of the precipitates formed from the silver nitrate test for halides in and out of sunlight?
020808
Corrie writes .....
Fresh precipitates:
AgCl is white
AgBr is cream
AgI is yellow
In sunlight a precipitate of:
AgCl darkens quickly, becoming dark grey in appearance.
AgBr darkens a little and much more slowly
AgI does not darken
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updated: 08 June 2008
