Question

what do mean by Double Displacement Reaction?​

Answer 1

Explanation:

double displacement reaction means interchange of high reactive elements in an reaction to low reactive elements

Answer 2

Answer

Explanation:

these are those reactions in which two ionic compounds exchange their two or more ions to form new compounds.

example=

1. AgNO3(aq.)+NaCl(aq.) gives   AgCl +NaNO3(aq.)(sodium nitrate)

   (silver nitrate)              (silver chloride (precipitates))

2. FeS(aq.) + H2SO4(dilute) gives FeSO4 (aq.)+ H2S(g) (hydrogen sulphide)

  (iron                   (aq.)                     (ferrous sulphate)  

sulphide)