Question

In what way is a displacement reaction different form a double displacement reaction? Explain with examples.

Answer 1

Here is your answer:

In a displacement reaction only one element is displaced by other, whereas in double displacement reaction both elements displace each other from their salt solution It's also called a  precipitate reaction as one precipitate is also formed:

Displacement:

2K + Na₂SO₄------------> K₂SO₄ + 2Na

Double displacement:

Na₂SO₄ + BaCl₂----------> 2NaCl + BaSO₄   ( BaSO₄ is white precipitate)

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