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Monday, July 8, 2019

Special single displacement reactions

On rare occasions, single displacement reactions occur between a halogen and an ionic compound (which contains a halogen as the negative ion).

In these cases, the halogens trade places.

For instance:



Do they occur?

Just like regular single displacement reactions, not all versions of these reaction that can be written actually will occur.  The activity series for halogens is the periodic table. This reaction occurs because fluorine is more active than bromine. (Fluorine is higher on the periodic table than bromine).)
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