Class 10 Science - Chapter Chemical reaction and Equation NCERT Solutions | What is the difference between displacem

Welcome to the NCERT Solutions for Class 10th Science - Chapter Chemical reaction and Equation. This page offers a step-by-step solution to the specific question from Excercise ".$ex_no." , Question 13: what is the difference between displacement and do....
Question 13

What is the difference between displacement and double displacement reactions? Write equations for these reactions.

Answer

Displacement Reaction :  In this reaction more reactive element displaces the less reactive element

                                             AB     +     C     →     AC     +     B

eg.: 

(i)   Fe  +  CuSO4  →  FeSO4  +  Cu
(ii)   Pb  +  CuCl2  →  PbCl2  +  Cu


Double Displacement Reaction :  In this reaction exchange of ions takes place

                                             AB     +     CD     →     AC     +     BD

eg.: 

(i)   Na2SO4  +  BaCl2  →  2NaCl  +  BaSO4
(ii)   HCl  +  AgNO3  →  AgCl  +  HNO3

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