Question

Different between simple and double displacement reaction answer the question each question is two mark in easy words

Answer 1

simple displacment reaction -> AB + C = AC + B
double displacement reaction -> AB + CD = AC + BD

A , B , C and D can be substituted with other elements
the reactivity series also needs to be taken into considerarion when we write a reaction, if the reactivity of one substance is less than the other then no reaction will take place