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ICSE Class 8 Answered

What are double displacement reactions
Asked by Nidhimalhotra888 | 06 Dec, 2019, 04:31: PM
answered-by-expert Expert Answer

Double displacement: This is when the anions and cations of two different molecules switch places, forming two entirely different compounds. These reactions are in the general form:

AB + CD → AD + CB

One example of a double displacement reaction is the reaction of lead (II) nitrate with potassium iodide to form lead (II) iodide and potassium nitrate:

Pb(NO3)2 + 2 KI  PbI2 + 2 KNO3

Reactions that can be classified as double displacements include precipitation reactions, neutralization reactions and gas forming reactions. 
Answered by Ramandeep | 08 Dec, 2019, 08:14: PM
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