Displacement and Double displacement Reactions.
Displacement reaction and double displacement reaction: A displacement reaction is a chemical reaction in which a more reactive element substitutes the other element from the solution of its compound while a double displacement reaction is a chemical reaction in which there is the exchange of ions between two reactants.In displacement reaction, aqueous solutions of two compounds are combined then cations and anions of both compounds displace each other.
Click for online shopping
Future Study Point.Deal: Cloths, Laptops, Computers, Mobiles, Shoes etc
Table of content
- Displacement reaction
- Examples of displacement reaction
- Double displacement reaction
- Example of double displacement reaction
- Precipitation reaction
- Neutralization reaction
You can also study
Difference between Combination and Decomposition Reactions.
Displacement and Double displacement Reactions.
Displacement Reaction:
The reactivity series of the elements is K>Na>Ca>Mg>Al>C>Zn>Fe>Cu and so on. The element with higher reactivity substitutes other lesser reactive elements from its solution. The reaction between an element and the solution of a compound of another element lies in low grade in the reactivity series then the element which has a higher rank in the reactivity series substitutes the element from the solution of its compound, such a reaction is known as displacement reaction.
C+ AB →CB + A
In reactivity series C>A, therefore element C displaces element A and forms a new compound CB freeing A.
Iron nails become brownish in color and the blue color of copper sulfate turns light blue due to the formation of iron sulfate.
Examples:
(i) Fe(s) + CuSO4 (aq)→ FeSO4 (aq)+Cu(s)
In this reaction Fe is more reactive than Cu, therefore Fe displaces Cu from the solution of CuSO4 and forms FeSO4.
(ii) Zn(s) + CuSO4 (aq)→ ZnSO4 (aq)+Cu(s)
In this reaction Zn is more reactive than Cu, therefore Zn displaces Cu from the solution of CuSO4 and forms ZnSO4.
(iii) Pb(s) + CuCl2 (aq)→ PbCl2 (aq)+Cu(s)
In this reaction Pb is more reactive than Cu, therefore Pb displaces Cu from the solution of CuCl2 and forms PbCl2.
Double displacement reaction:
A double displacement reaction is a reaction between two compounds in which ions of both compound exchanges with each other making two new compounds.
A+B– + C+D–→A+D– + C+B–
Examples:
BaCl2 (aq)+ Na2SO4(aq)→BaSO4 (aq)+ 2NaC(aq)
The cations Ba2- and Na+ displace each other forming new compounds BaSO4 and 2NaCl.
Precipitation reaction:
Two aqueous compounds form such a compound which is insoluble in water. An example of a precipitation reaction is the reaction between lead nitrate and potassium iodide, both of them are soluble in water and make a clear and colorless solution. When both lead nitrate(aq) and potassium iodide(aq) are combined they form an insoluble substance potassium iodide.
In this double displacement reaction lead iodide an insoluble substance is known as a precipitate.
Neutralization reaction:
Aqueous solutions of base and acid are combined to form aqueous solutions of salt and water, such a double displacement reaction of acid and base is known as a neutralization reaction.
NaOH (aq)+HCl(aq)→NaCl(aq)+ H2O(l)
Class 10 Chemistry Important Notes
How to Balance the Chemical Reaction :Class 10 Chapter 1 NCERT
Important salts class 10 CBSE sceience notes
Why do calcium and magnesium float on the surface of the water?
Functioning of Soda-Acid Fire Extinguisher
What are Corrosion and Rancidity ?
Chemical properties of Acid and Bases-A note for grade 10 students
What is pH value and its importance in everyday life.
Type of Chemical Reactions with Complete detail
What are the physical and chemical properties of metals?
Extraction of metals as per the activity series
Trends in the property of element from left to right and up to down in the modern periodic table.
Ionic and covalent compounds and the difference between them
What is the difference between the soap and the detergent ?
Class 10 chemistry Viva Voce Questions and Answers for CBSE Board 2020-21
Class 9 Chemistry Important Notes
Evoporation,Vapourization and Latent heat
How does the water kept in an earthen pot become cold during summer ?
What are the factors affecting evaporation?,
What is the difference between solution,colloid and suspension?
What is the difference between element and the compound?
Determining Valency, Net Charge and Molecular Formula
Molar mass,molecular mass and mole concept
If energy is conserved then why do we need to save it for future generations?
Click the link for NCERT Solutions for classes 9,10,11 and 12 of Maths & Science
NCERT Solutions and CBSE notes for Class 9,10,11 and 12 of Maths and Science
NCERT Solutions of Class 9 Maths : from chapter 1 to 15
NCERT Solutions Class 10 Science from chapter 1 to 16
NCERT Solutions of all chapters of Maths for Class 10 from Chapters 1 to 15
NEET Syllabus and its preparation
Specific notes for the preparation of 10 class CBSE board exam for achieving excellent marks
What to do to pass in maths CBSE X th board exam ?
Tips to get success in competitive exams
NCERT Solutions for Class 10 Science
You can compensate us
Paytm number 9891436286
The money collected by us will be used for the education of poor students who leaves their study because of a lack of money.
