Question

what is displacement reactions .give one example of it.how is it different from double displacement reactions.

Answer 1

Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound. Both metals and non-metals take part in displacement reactions. Example : Reaction of iron nails with copper sulphate solution.

The main difference between displacement and double displacement reaction is that in displacement reaction, a single chemical species is replaced whereas, in double displacement reactions, two chemical species are replaced.

Answer 2

Diaplacement reaction- Reaction in which one more reactive element takes the place of less reactive element is known as displacement reaction. Example- CuSO4 + Zn = ZnSO4 + Cu

Double displacement reaction - The reaction in which there is an exchange of ions is called double displacement reaction.

Example- BaCl2 + Na2SO4 = BaSO4 + 2NaCl