1. why precipitate is formed during a double displacement reaction?
2. what are the advantages of corrosion?
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1.Double displacement reactionoccur in aqueous solution, and the combination of cation and anion occur forming a compound which is insoluble in water. That is why always precipitation reaction occur.
2.Advantages of corrosion -
Protection : Surface corrosion forms an oxide layer which further protects the inner metal form corrosion.
Corrosion prevents corrosion :Some metals like zinc are used as sacrificial anodes to prevent corrosion to other metal.
Galvanic corrosion : The principle on which primary batteries work. In which one metal corrodes preferentially to another when both metals are in electrical contact, in the presence of an electrolyte.
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1.Double displacement reactionoccur in aqueous solution, and the combination of cation and anion occur forming a compound which is insoluble in water. That is why always precipitation reaction occur.
2.Advantages of corrosion -
Protection : Surface corrosion forms an oxide layer which further protects the inner metal form corrosion.
Corrosion prevents corrosion :Some metals like zinc are used as sacrificial anodes to prevent corrosion to other metal.
Galvanic corrosion : The principle on which primary batteries work. In which one metal corrodes preferentially to another when both metals are in electrical contact, in the presence of an electrolyte.
HOPE YOU GOT IT
PLEASE MARK THE ANSWER AS BRAINLIST.
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