Answer :
Explanation:
The more reactive element replaces less reactive element during chemical reaction.
Since, potassium is more reactive than beryllium. When potassium reacts with beryllium choride, it replaces beryllium and forms potassium chloride and produces beryllium.
Beryllium is produced due to the fact that the more reactive element in the reaction would have to take over the element that is less reactive.
The chemical reaction of Potassium and Beryllium chloride
In this reaction the element that is more reactive is potassium. When the reaction takes place it would take over and replace beryllium due to this quality.
Hence beryllium chloride would become potassium chloride from the resulting reaction.
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