SlideShare a Scribd company logo
1 of 16
BY: VEENU GUPTA
BY : VEENU GUPTA (CHEM)6/5/2020
CHEMICAL REACTION
 The transformation of chemical substance into a new chemical
substance by making and breaking of bonds between different
atoms is known as Chemical Reaction.
 For example:
Rusting of iron, the setting of milk into curd, digestion of food,
respiration, etc.
 A chemical reaction involves a chemical change in which
substances react to form new substances with entirely new
properties.
 During a chemical reaction, there is a breaking of bonds between
atoms of the reacting molecules to give products.
BY : VEENU GUPTA (CHEM)6/5/2020
Example of chemical reaction
 The burning of magnesium in the air to form
magnesium oxide(white ash) is an example of a
chemical reaction.
2Mg(s) + O2(g) →2MgO(s)[Basic in nature]
 Before burning in air, the magnesium ribbon is
cleaned by rubbing with sandpaper. This is done to
remove the protective layer of basic Magnesium
carbonate from the surface of the magnesium ribbon.
 2Mg(s) + O2(g)+ CO2(g) →2MgCO3(s)
BY : VEENU GUPTA (CHEM)6/5/2020
Reactants & Products
Reaction: 2Mg(s) + O2(g) →2MgO(s)
 Substances which take part in a chemical reaction
are called reactants.
Example: Mg and O2.
 New substance formed after a chemical reaction is
called a product.
Example: MgO.
BY : VEENU GUPTA (CHEM)6/5/2020
Characteristics of Chemical Reactions
 EVOLUTION OF GAS
 CHANGE IN COLOUR OF SOLUTION
 FORMATION OF PRECIPITATES
 CHANGE IN STATE OF SUBSTANCE
 CHANGE IN TEMPERATURE
BY : VEENU GUPTA (CHEM)6/5/2020
(i) Evolution of gas
The chemical reaction between zinc and dilute
sulphuric acid is characterised by the evolution of
hydrogen gas.
Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g) ↑
BY : VEENU GUPTA (CHEM)6/5/2020
REACTION BETWEEN ZINC GRANULES AND
DILUTE SULPHURIC ACID
BY : VEENU GUPTA (CHEM)6/5/2020
Test For Hydrogen Gas
 The gas evolved after reaction of acid with
metal can be tested by bringing a lighted
candle near it.
 If the gas bums with a pop sound, then it
confirms the evolution of hydrogen gas.
 Burning with pop sound is the characteristic
test for hydrogen gas.
BY : VEENU GUPTA (CHEM)6/5/2020
(ii) Change in Colour
 When Iron reacts with copper sulphate , it forms Iron
sulphate and copper metal and the colour of solution
changes from blue to green and there is no formation of
ppts.
Fe (s) + CuSO4 (aq) → FeSO4 (aq) + Cu (s)
(Blue colour ) (green colouration)
 The chemical reaction between citric acid and purple
coloured potassium permanganate solution is characterised
by a change in colour from purple to colourless.
 The chemical reaction between sulphur dioxide gas and
acidified potassium dichromate solution is characterized by a
change in colour from orange to green.
BY : VEENU GUPTA (CHEM)6/5/2020
iii) Formation of precipitates
 When the solution of barium chloride reacts
with the solution of sodium sulphate, white
precipitates of barium sulphate are formed
along with sodium chloride.
BaCl2 (aq) + Na2SO4(aq) → BaSO4 (s) + 2 NaCl (aq)
(White ppt)
 When the solution of Lead Nitrate reacts with
the solution of Potassium Iodide, Yellow
precipitates of Lead Iodide are formed along
with Potassium Nitrate.
Pb(NO3)2 (aq) + 2 KI (aq) → PbI2 ( ↓ ) + 2 KNO3 (aq)
(yellow ppt)
BY : VEENU GUPTA (CHEM)6/5/2020
 When the solution of Silver Nitrate reacts with the solution of
sodium chloride then white ppts of silver chloride are formed
along with sodium Nitrate
 AgNO3 (aq) + NaCl (aq) → AgCl ( ↓ ) + NaNO3 (aq)
(white ppt)
 When the solution of Silver Nitrate reacts with the solution of
sodium bromide then Yellow precipitates of silver bromides are
formed along with sodium Nitrate
 AgNO3 (aq) + NaBr (aq) → AgBr ( ↓ ) + NaNO3 (aq)
(yellow ppt)
 The chemical reaction between sulphuric acid and barium
chloride solution is characterised by the formation of a white
precipitate of barium sulphate.
BaCl2(aq) + H2SO4(aq) → BaSO4(s) + 2HCl(aq)
(white ppt)
BY : VEENU GUPTA (CHEM)6/5/2020
(IV) Change in state of substance
 The combustion reaction of candle wax is characterised by a
change in state from solid to liquid and gas (because the wax
is a solid, water formed by the combustion of wax is a liquid
at room temperature whereas, carbon dioxide produced by
the combustion of wax is a gas).
 There are some chemical reactions which can show more
than one characteristics.
BY : VEENU GUPTA (CHEM)6/5/2020
[v] CHANGE IN
TEMPERATURE
BY : VEENU GUPTA (CHEM)6/5/2020
Reactions involving increase in
temperature:
 The chemical reaction between quick lime & water to form slaked
lime is characterized by rise in temperature .
Ca0 + H2O → Ca(OH)2
 The chemical reaction between zinc granules and dilute sulphuric
acid is also characterised by rise in temperature.
Zn + 2H2SO4 → ZnSO4 + H2
 The chemical reaction between zinc granules and dilute
Hydrochloric acid is also characterised by a rise in temperature.
Zn + 2HCl → ZnCl2 + H2
 Respiration is also a chemical reaction which involves increase in
temperature.
 Most of the combinations reactions occurs by an increase in
temperature of the solution.
BY : VEENU GUPTA (CHEM)6/5/2020
REACTIONS INVOLVING DECREASE IN
TEMPERATURE:
i) Thermal Decomposition of Lead Nitrate
2Pb(NO3)2 (s) + Heat → 2PbO(s) + 4NO2(g) + O2(g)
white brown gas
ii) Thermal Decomposition of Ferrous Sulphate
2 FeSO4 (s) + Heat → Fe2O3 (s) + SO2 (g) + SO3(g)
Ferrous Sulphate Ferric oxide Sulphur Sulphur
(green) (brown) dioxide trioxide
iii) Thermal Decomposition of calcium carbonate
CaCO3(s) + Heat → CaO(aq) + CO2 (g)
(Calcium Carbonate) ( calcium oxide)
BY : VEENU GUPTA (CHEM)6/5/2020
THANKS
BY : VEENU GUPTA (CHEM)6/5/2020

More Related Content

What's hot

Reactivity Series S4
Reactivity Series  S4Reactivity Series  S4
Reactivity Series S4guest73629
 
types of chemical reaction
types of chemical reactiontypes of chemical reaction
types of chemical reactionvxiiayah
 
The Language of Chemistry
The Language of ChemistryThe Language of Chemistry
The Language of ChemistryUlfa Dewanti
 
Physical and chemical change
Physical and chemical changePhysical and chemical change
Physical and chemical changeangelpastolero
 
Chemical equations & reactions
Chemical equations & reactionsChemical equations & reactions
Chemical equations & reactionsBibhuti Bhushan
 
Chemical Reactions (Class-10)
Chemical Reactions (Class-10)Chemical Reactions (Class-10)
Chemical Reactions (Class-10)Sakib Saifi
 
PowerPoint Presentation on Metals and Non Metals
PowerPoint Presentation on Metals and Non MetalsPowerPoint Presentation on Metals and Non Metals
PowerPoint Presentation on Metals and Non MetalsAmanAman84
 
Reaction of metal with oxygen
Reaction of metal with oxygenReaction of metal with oxygen
Reaction of metal with oxygenchiragjainsmart13
 
Chemical Reactions
Chemical ReactionsChemical Reactions
Chemical ReactionsOhMiss
 
Chemical reaction and equations(class 10th)
Chemical reaction and equations(class 10th)Chemical reaction and equations(class 10th)
Chemical reaction and equations(class 10th)Rahul Verma
 
Different types of chemical reactions(ppt)
Different types of chemical reactions(ppt)Different types of chemical reactions(ppt)
Different types of chemical reactions(ppt)utkarshs92
 
Chemical Changes
Chemical ChangesChemical Changes
Chemical Changesleasc
 
Chapter 3.metals and non metals priya jha
Chapter 3.metals and non metals priya jhaChapter 3.metals and non metals priya jha
Chapter 3.metals and non metals priya jhaPriya Jha
 
Chapter 8 redox reactions ppt for class 11 CBSE
Chapter 8 redox reactions ppt for class 11 CBSEChapter 8 redox reactions ppt for class 11 CBSE
Chapter 8 redox reactions ppt for class 11 CBSEritik
 
Elements, Compounds, Mixtures
Elements, Compounds, MixturesElements, Compounds, Mixtures
Elements, Compounds, MixturessYhira
 
Class 10 Chemistry Chapter 1 chemical reactions and equations
Class 10  Chemistry Chapter 1 chemical reactions and equationsClass 10  Chemistry Chapter 1 chemical reactions and equations
Class 10 Chemistry Chapter 1 chemical reactions and equationsNandananPr1
 

What's hot (20)

Reactivity Series S4
Reactivity Series  S4Reactivity Series  S4
Reactivity Series S4
 
types of chemical reaction
types of chemical reactiontypes of chemical reaction
types of chemical reaction
 
The Language of Chemistry
The Language of ChemistryThe Language of Chemistry
The Language of Chemistry
 
Physical and chemical change
Physical and chemical changePhysical and chemical change
Physical and chemical change
 
Types of Chemical Reactions
Types of Chemical ReactionsTypes of Chemical Reactions
Types of Chemical Reactions
 
Chemical equations & reactions
Chemical equations & reactionsChemical equations & reactions
Chemical equations & reactions
 
Chemical Reactions (Class-10)
Chemical Reactions (Class-10)Chemical Reactions (Class-10)
Chemical Reactions (Class-10)
 
PowerPoint Presentation on Metals and Non Metals
PowerPoint Presentation on Metals and Non MetalsPowerPoint Presentation on Metals and Non Metals
PowerPoint Presentation on Metals and Non Metals
 
Reaction of metal with oxygen
Reaction of metal with oxygenReaction of metal with oxygen
Reaction of metal with oxygen
 
Chemical Reactions
Chemical ReactionsChemical Reactions
Chemical Reactions
 
Chemical reaction and equations(class 10th)
Chemical reaction and equations(class 10th)Chemical reaction and equations(class 10th)
Chemical reaction and equations(class 10th)
 
Different types of chemical reactions(ppt)
Different types of chemical reactions(ppt)Different types of chemical reactions(ppt)
Different types of chemical reactions(ppt)
 
Chemical Changes
Chemical ChangesChemical Changes
Chemical Changes
 
Chapter 3.metals and non metals priya jha
Chapter 3.metals and non metals priya jhaChapter 3.metals and non metals priya jha
Chapter 3.metals and non metals priya jha
 
Chapter 8 redox reactions ppt for class 11 CBSE
Chapter 8 redox reactions ppt for class 11 CBSEChapter 8 redox reactions ppt for class 11 CBSE
Chapter 8 redox reactions ppt for class 11 CBSE
 
Elements, Compounds, Mixtures
Elements, Compounds, MixturesElements, Compounds, Mixtures
Elements, Compounds, Mixtures
 
Lesson 6 elements
Lesson 6 elementsLesson 6 elements
Lesson 6 elements
 
Salt preparation
Salt preparation Salt preparation
Salt preparation
 
Class 10 Chemistry Chapter 1 chemical reactions and equations
Class 10  Chemistry Chapter 1 chemical reactions and equationsClass 10  Chemistry Chapter 1 chemical reactions and equations
Class 10 Chemistry Chapter 1 chemical reactions and equations
 
The periodic table
The periodic tableThe periodic table
The periodic table
 

Similar to Chemical reactions and their characteristics

Types of chemical reactions
Types of chemical reactionsTypes of chemical reactions
Types of chemical reactionsVeenuGupta8
 
CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 3 IN...
CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 3  IN...CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 3  IN...
CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 3 IN...MeetaYadav5
 
ncert-class10-science-chapter1-chemicalreactionsandequations-200522140131.pptx
ncert-class10-science-chapter1-chemicalreactionsandequations-200522140131.pptxncert-class10-science-chapter1-chemicalreactionsandequations-200522140131.pptx
ncert-class10-science-chapter1-chemicalreactionsandequations-200522140131.pptxSanyaGulati16
 
Chemical reactions and equations 10 chm(1)
Chemical reactions and equations 10 chm(1)Chemical reactions and equations 10 chm(1)
Chemical reactions and equations 10 chm(1)VeenuGupta8
 
Basics of Chemical Reactions
Basics of Chemical ReactionsBasics of Chemical Reactions
Basics of Chemical ReactionsRAJEEVBAYAN1
 
Types of chemical reaction
Types of chemical reactionTypes of chemical reaction
Types of chemical reactionAJAYADITHYASIVA
 
ch.-1 chemical reactions and equations .pptx
ch.-1 chemical reactions and equations .pptxch.-1 chemical reactions and equations .pptx
ch.-1 chemical reactions and equations .pptxRajat Sardana
 
Unit 3 types of chemical reaction
Unit 3 types of chemical reactionUnit 3 types of chemical reaction
Unit 3 types of chemical reactionNiamat Sarkhadi
 
Chemical reactions and Equations PPT.pptx
Chemical reactions and Equations PPT.pptxChemical reactions and Equations PPT.pptx
Chemical reactions and Equations PPT.pptxAntarcticSaver
 
CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 2 TYP...
CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 2 TYP...CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 2 TYP...
CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 2 TYP...MeetaYadav5
 
Chemical reactions sir niamat ullah
Chemical reactions sir niamat ullahChemical reactions sir niamat ullah
Chemical reactions sir niamat ullahNiamat Ullah
 
12 types of chemical reactions
12 types of chemical reactions12 types of chemical reactions
12 types of chemical reactionsmrtangextrahelp
 
Types of Reactions PPT.pdf_١١٢٢٠٠٠٤.pptx
Types of Reactions PPT.pdf_١١٢٢٠٠٠٤.pptxTypes of Reactions PPT.pdf_١١٢٢٠٠٠٤.pptx
Types of Reactions PPT.pdf_١١٢٢٠٠٠٤.pptxsalehalgabri02
 
Chemical reactions and equations
Chemical reactions and equationsChemical reactions and equations
Chemical reactions and equationsAyushmanTiwari4
 
Ncert class 10 - science - chapter 1 - chemical reactions and equations
Ncert  class 10 - science - chapter 1 - chemical reactions and equationsNcert  class 10 - science - chapter 1 - chemical reactions and equations
Ncert class 10 - science - chapter 1 - chemical reactions and equationsEswariKumaravel
 
Std 10, Chapter 2-Chemical Reactions
Std 10, Chapter 2-Chemical ReactionsStd 10, Chapter 2-Chemical Reactions
Std 10, Chapter 2-Chemical ReactionsGurudatta Wagh
 
Chemical reaction and equation
Chemical reaction and equationChemical reaction and equation
Chemical reaction and equationpavan uikey
 
04 types of chemical reactions
04 types of chemical reactions04 types of chemical reactions
04 types of chemical reactionsmrtangextrahelp
 
5 types of chemical reactions
5 types of chemical reactions5 types of chemical reactions
5 types of chemical reactionsDanica Gutierrez
 

Similar to Chemical reactions and their characteristics (20)

Types of chemical reactions
Types of chemical reactionsTypes of chemical reactions
Types of chemical reactions
 
class-xChemical reaction corrosion and rancidity
class-xChemical reaction corrosion and rancidityclass-xChemical reaction corrosion and rancidity
class-xChemical reaction corrosion and rancidity
 
CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 3 IN...
CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 3  IN...CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 3  IN...
CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 3 IN...
 
ncert-class10-science-chapter1-chemicalreactionsandequations-200522140131.pptx
ncert-class10-science-chapter1-chemicalreactionsandequations-200522140131.pptxncert-class10-science-chapter1-chemicalreactionsandequations-200522140131.pptx
ncert-class10-science-chapter1-chemicalreactionsandequations-200522140131.pptx
 
Chemical reactions and equations 10 chm(1)
Chemical reactions and equations 10 chm(1)Chemical reactions and equations 10 chm(1)
Chemical reactions and equations 10 chm(1)
 
Basics of Chemical Reactions
Basics of Chemical ReactionsBasics of Chemical Reactions
Basics of Chemical Reactions
 
Types of chemical reaction
Types of chemical reactionTypes of chemical reaction
Types of chemical reaction
 
ch.-1 chemical reactions and equations .pptx
ch.-1 chemical reactions and equations .pptxch.-1 chemical reactions and equations .pptx
ch.-1 chemical reactions and equations .pptx
 
Unit 3 types of chemical reaction
Unit 3 types of chemical reactionUnit 3 types of chemical reaction
Unit 3 types of chemical reaction
 
Chemical reactions and Equations PPT.pptx
Chemical reactions and Equations PPT.pptxChemical reactions and Equations PPT.pptx
Chemical reactions and Equations PPT.pptx
 
CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 2 TYP...
CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 2 TYP...CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 2 TYP...
CBSE CLASS 10 CHEMISTRY CHAPTER 1 CHEMICAL REACTIONS AND EQUATIONS PART 2 TYP...
 
Chemical reactions sir niamat ullah
Chemical reactions sir niamat ullahChemical reactions sir niamat ullah
Chemical reactions sir niamat ullah
 
12 types of chemical reactions
12 types of chemical reactions12 types of chemical reactions
12 types of chemical reactions
 
Types of Reactions PPT.pdf_١١٢٢٠٠٠٤.pptx
Types of Reactions PPT.pdf_١١٢٢٠٠٠٤.pptxTypes of Reactions PPT.pdf_١١٢٢٠٠٠٤.pptx
Types of Reactions PPT.pdf_١١٢٢٠٠٠٤.pptx
 
Chemical reactions and equations
Chemical reactions and equationsChemical reactions and equations
Chemical reactions and equations
 
Ncert class 10 - science - chapter 1 - chemical reactions and equations
Ncert  class 10 - science - chapter 1 - chemical reactions and equationsNcert  class 10 - science - chapter 1 - chemical reactions and equations
Ncert class 10 - science - chapter 1 - chemical reactions and equations
 
Std 10, Chapter 2-Chemical Reactions
Std 10, Chapter 2-Chemical ReactionsStd 10, Chapter 2-Chemical Reactions
Std 10, Chapter 2-Chemical Reactions
 
Chemical reaction and equation
Chemical reaction and equationChemical reaction and equation
Chemical reaction and equation
 
04 types of chemical reactions
04 types of chemical reactions04 types of chemical reactions
04 types of chemical reactions
 
5 types of chemical reactions
5 types of chemical reactions5 types of chemical reactions
5 types of chemical reactions
 

More from VeenuGupta8

Alcohols ,Phenol and Ethers
Alcohols ,Phenol and EthersAlcohols ,Phenol and Ethers
Alcohols ,Phenol and EthersVeenuGupta8
 
Some Basic Concepts of Chemistry(CHAPTER-1)
Some Basic Concepts of Chemistry(CHAPTER-1)Some Basic Concepts of Chemistry(CHAPTER-1)
Some Basic Concepts of Chemistry(CHAPTER-1)VeenuGupta8
 
Importance and scope of chemistry
Importance and scope of chemistryImportance and scope of chemistry
Importance and scope of chemistryVeenuGupta8
 
Importance of chemistry chm 11
Importance of chemistry chm 11Importance of chemistry chm 11
Importance of chemistry chm 11VeenuGupta8
 
Haloalkanes and haloarenes
Haloalkanes and haloarenesHaloalkanes and haloarenes
Haloalkanes and haloarenesVeenuGupta8
 
Chemical equations and their types
Chemical equations and their typesChemical equations and their types
Chemical equations and their typesVeenuGupta8
 
Biomolecules (12 th chemistry)
Biomolecules  (12 th chemistry)Biomolecules  (12 th chemistry)
Biomolecules (12 th chemistry)VeenuGupta8
 
Biomolecules (chapter 12 chemistry)
Biomolecules  (chapter 12 chemistry)Biomolecules  (chapter 12 chemistry)
Biomolecules (chapter 12 chemistry)VeenuGupta8
 
Acids , Bases & Salts (Some Important chemical compounds)
 Acids , Bases & Salts (Some Important chemical compounds) Acids , Bases & Salts (Some Important chemical compounds)
Acids , Bases & Salts (Some Important chemical compounds)VeenuGupta8
 
Chemical reactions of acids and bases
Chemical reactions of acids and basesChemical reactions of acids and bases
Chemical reactions of acids and basesVeenuGupta8
 
Acid base indicators chemistry
Acid base indicators chemistryAcid base indicators chemistry
Acid base indicators chemistryVeenuGupta8
 
Determination of strength of acids and bases by using pH scale
Determination of strength of acids and bases by using pH scaleDetermination of strength of acids and bases by using pH scale
Determination of strength of acids and bases by using pH scaleVeenuGupta8
 
Acid base indicators
Acid base indicatorsAcid base indicators
Acid base indicatorsVeenuGupta8
 
Periodic classification of elements
Periodic classification of elementsPeriodic classification of elements
Periodic classification of elementsVeenuGupta8
 
Periodic properties of elements
Periodic properties of elementsPeriodic properties of elements
Periodic properties of elementsVeenuGupta8
 
Historical development of periodic table
Historical development of periodic tableHistorical development of periodic table
Historical development of periodic tableVeenuGupta8
 
Classification of acids & bases
Classification of acids & bases  Classification of acids & bases
Classification of acids & bases VeenuGupta8
 
Periodic classification of elements 10 CHM(5)
Periodic classification of elements 10 CHM(5)Periodic classification of elements 10 CHM(5)
Periodic classification of elements 10 CHM(5)VeenuGupta8
 

More from VeenuGupta8 (18)

Alcohols ,Phenol and Ethers
Alcohols ,Phenol and EthersAlcohols ,Phenol and Ethers
Alcohols ,Phenol and Ethers
 
Some Basic Concepts of Chemistry(CHAPTER-1)
Some Basic Concepts of Chemistry(CHAPTER-1)Some Basic Concepts of Chemistry(CHAPTER-1)
Some Basic Concepts of Chemistry(CHAPTER-1)
 
Importance and scope of chemistry
Importance and scope of chemistryImportance and scope of chemistry
Importance and scope of chemistry
 
Importance of chemistry chm 11
Importance of chemistry chm 11Importance of chemistry chm 11
Importance of chemistry chm 11
 
Haloalkanes and haloarenes
Haloalkanes and haloarenesHaloalkanes and haloarenes
Haloalkanes and haloarenes
 
Chemical equations and their types
Chemical equations and their typesChemical equations and their types
Chemical equations and their types
 
Biomolecules (12 th chemistry)
Biomolecules  (12 th chemistry)Biomolecules  (12 th chemistry)
Biomolecules (12 th chemistry)
 
Biomolecules (chapter 12 chemistry)
Biomolecules  (chapter 12 chemistry)Biomolecules  (chapter 12 chemistry)
Biomolecules (chapter 12 chemistry)
 
Acids , Bases & Salts (Some Important chemical compounds)
 Acids , Bases & Salts (Some Important chemical compounds) Acids , Bases & Salts (Some Important chemical compounds)
Acids , Bases & Salts (Some Important chemical compounds)
 
Chemical reactions of acids and bases
Chemical reactions of acids and basesChemical reactions of acids and bases
Chemical reactions of acids and bases
 
Acid base indicators chemistry
Acid base indicators chemistryAcid base indicators chemistry
Acid base indicators chemistry
 
Determination of strength of acids and bases by using pH scale
Determination of strength of acids and bases by using pH scaleDetermination of strength of acids and bases by using pH scale
Determination of strength of acids and bases by using pH scale
 
Acid base indicators
Acid base indicatorsAcid base indicators
Acid base indicators
 
Periodic classification of elements
Periodic classification of elementsPeriodic classification of elements
Periodic classification of elements
 
Periodic properties of elements
Periodic properties of elementsPeriodic properties of elements
Periodic properties of elements
 
Historical development of periodic table
Historical development of periodic tableHistorical development of periodic table
Historical development of periodic table
 
Classification of acids & bases
Classification of acids & bases  Classification of acids & bases
Classification of acids & bases
 
Periodic classification of elements 10 CHM(5)
Periodic classification of elements 10 CHM(5)Periodic classification of elements 10 CHM(5)
Periodic classification of elements 10 CHM(5)
 

Recently uploaded

Removal Strategy _ FEFO _ Working with Perishable Products in Odoo 17
Removal Strategy _ FEFO _ Working with Perishable Products in Odoo 17Removal Strategy _ FEFO _ Working with Perishable Products in Odoo 17
Removal Strategy _ FEFO _ Working with Perishable Products in Odoo 17Celine George
 
The Last Leaf, a short story by O. Henry
The Last Leaf, a short story by O. HenryThe Last Leaf, a short story by O. Henry
The Last Leaf, a short story by O. HenryEugene Lysak
 
size separation d pharm 1st year pharmaceutics
size separation d pharm 1st year pharmaceuticssize separation d pharm 1st year pharmaceutics
size separation d pharm 1st year pharmaceuticspragatimahajan3
 
....................Muslim-Law notes.pdf
....................Muslim-Law notes.pdf....................Muslim-Law notes.pdf
....................Muslim-Law notes.pdfVikramadityaRaj
 
Graduate Outcomes Presentation Slides - English (v3).pptx
Graduate Outcomes Presentation Slides - English (v3).pptxGraduate Outcomes Presentation Slides - English (v3).pptx
Graduate Outcomes Presentation Slides - English (v3).pptxneillewis46
 
會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽
會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽
會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽中 央社
 
Envelope of Discrepancy in Orthodontics: Enhancing Precision in Treatment
 Envelope of Discrepancy in Orthodontics: Enhancing Precision in Treatment Envelope of Discrepancy in Orthodontics: Enhancing Precision in Treatment
Envelope of Discrepancy in Orthodontics: Enhancing Precision in Treatmentsaipooja36
 
Spring gala 2024 photo slideshow - Celebrating School-Community Partnerships
Spring gala 2024 photo slideshow - Celebrating School-Community PartnershipsSpring gala 2024 photo slideshow - Celebrating School-Community Partnerships
Spring gala 2024 photo slideshow - Celebrating School-Community Partnershipsexpandedwebsite
 
Basic Civil Engineering notes on Transportation Engineering, Modes of Transpo...
Basic Civil Engineering notes on Transportation Engineering, Modes of Transpo...Basic Civil Engineering notes on Transportation Engineering, Modes of Transpo...
Basic Civil Engineering notes on Transportation Engineering, Modes of Transpo...Denish Jangid
 
MOOD STABLIZERS DRUGS.pptx
MOOD     STABLIZERS           DRUGS.pptxMOOD     STABLIZERS           DRUGS.pptx
MOOD STABLIZERS DRUGS.pptxPoojaSen20
 
Capitol Tech Univ Doctoral Presentation -May 2024
Capitol Tech Univ Doctoral Presentation -May 2024Capitol Tech Univ Doctoral Presentation -May 2024
Capitol Tech Univ Doctoral Presentation -May 2024CapitolTechU
 
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文中 央社
 
demyelinated disorder: multiple sclerosis.pptx
demyelinated disorder: multiple sclerosis.pptxdemyelinated disorder: multiple sclerosis.pptx
demyelinated disorder: multiple sclerosis.pptxMohamed Rizk Khodair
 
Dementia (Alzheimer & vasular dementia).
Dementia (Alzheimer & vasular dementia).Dementia (Alzheimer & vasular dementia).
Dementia (Alzheimer & vasular dementia).Mohamed Rizk Khodair
 
Pragya Champions Chalice 2024 Prelims & Finals Q/A set, General Quiz
Pragya Champions Chalice 2024 Prelims & Finals Q/A set, General QuizPragya Champions Chalice 2024 Prelims & Finals Q/A set, General Quiz
Pragya Champions Chalice 2024 Prelims & Finals Q/A set, General QuizPragya - UEM Kolkata Quiz Club
 
How to Analyse Profit of a Sales Order in Odoo 17
How to Analyse Profit of a Sales Order in Odoo 17How to Analyse Profit of a Sales Order in Odoo 17
How to Analyse Profit of a Sales Order in Odoo 17Celine George
 
Navigating the Misinformation Minefield: The Role of Higher Education in the ...
Navigating the Misinformation Minefield: The Role of Higher Education in the ...Navigating the Misinformation Minefield: The Role of Higher Education in the ...
Navigating the Misinformation Minefield: The Role of Higher Education in the ...Mark Carrigan
 
Software testing for project report .pdf
Software testing for project report .pdfSoftware testing for project report .pdf
Software testing for project report .pdfKamal Acharya
 

Recently uploaded (20)

Removal Strategy _ FEFO _ Working with Perishable Products in Odoo 17
Removal Strategy _ FEFO _ Working with Perishable Products in Odoo 17Removal Strategy _ FEFO _ Working with Perishable Products in Odoo 17
Removal Strategy _ FEFO _ Working with Perishable Products in Odoo 17
 
The Last Leaf, a short story by O. Henry
The Last Leaf, a short story by O. HenryThe Last Leaf, a short story by O. Henry
The Last Leaf, a short story by O. Henry
 
size separation d pharm 1st year pharmaceutics
size separation d pharm 1st year pharmaceuticssize separation d pharm 1st year pharmaceutics
size separation d pharm 1st year pharmaceutics
 
....................Muslim-Law notes.pdf
....................Muslim-Law notes.pdf....................Muslim-Law notes.pdf
....................Muslim-Law notes.pdf
 
Graduate Outcomes Presentation Slides - English (v3).pptx
Graduate Outcomes Presentation Slides - English (v3).pptxGraduate Outcomes Presentation Slides - English (v3).pptx
Graduate Outcomes Presentation Slides - English (v3).pptx
 
會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽
會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽
會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽會考英聽
 
Envelope of Discrepancy in Orthodontics: Enhancing Precision in Treatment
 Envelope of Discrepancy in Orthodontics: Enhancing Precision in Treatment Envelope of Discrepancy in Orthodontics: Enhancing Precision in Treatment
Envelope of Discrepancy in Orthodontics: Enhancing Precision in Treatment
 
Mattingly "AI and Prompt Design: LLMs with Text Classification and Open Source"
Mattingly "AI and Prompt Design: LLMs with Text Classification and Open Source"Mattingly "AI and Prompt Design: LLMs with Text Classification and Open Source"
Mattingly "AI and Prompt Design: LLMs with Text Classification and Open Source"
 
Spring gala 2024 photo slideshow - Celebrating School-Community Partnerships
Spring gala 2024 photo slideshow - Celebrating School-Community PartnershipsSpring gala 2024 photo slideshow - Celebrating School-Community Partnerships
Spring gala 2024 photo slideshow - Celebrating School-Community Partnerships
 
Basic Civil Engineering notes on Transportation Engineering, Modes of Transpo...
Basic Civil Engineering notes on Transportation Engineering, Modes of Transpo...Basic Civil Engineering notes on Transportation Engineering, Modes of Transpo...
Basic Civil Engineering notes on Transportation Engineering, Modes of Transpo...
 
MOOD STABLIZERS DRUGS.pptx
MOOD     STABLIZERS           DRUGS.pptxMOOD     STABLIZERS           DRUGS.pptx
MOOD STABLIZERS DRUGS.pptx
 
Capitol Tech Univ Doctoral Presentation -May 2024
Capitol Tech Univ Doctoral Presentation -May 2024Capitol Tech Univ Doctoral Presentation -May 2024
Capitol Tech Univ Doctoral Presentation -May 2024
 
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
 
demyelinated disorder: multiple sclerosis.pptx
demyelinated disorder: multiple sclerosis.pptxdemyelinated disorder: multiple sclerosis.pptx
demyelinated disorder: multiple sclerosis.pptx
 
Dementia (Alzheimer & vasular dementia).
Dementia (Alzheimer & vasular dementia).Dementia (Alzheimer & vasular dementia).
Dementia (Alzheimer & vasular dementia).
 
Pragya Champions Chalice 2024 Prelims & Finals Q/A set, General Quiz
Pragya Champions Chalice 2024 Prelims & Finals Q/A set, General QuizPragya Champions Chalice 2024 Prelims & Finals Q/A set, General Quiz
Pragya Champions Chalice 2024 Prelims & Finals Q/A set, General Quiz
 
How to Analyse Profit of a Sales Order in Odoo 17
How to Analyse Profit of a Sales Order in Odoo 17How to Analyse Profit of a Sales Order in Odoo 17
How to Analyse Profit of a Sales Order in Odoo 17
 
Navigating the Misinformation Minefield: The Role of Higher Education in the ...
Navigating the Misinformation Minefield: The Role of Higher Education in the ...Navigating the Misinformation Minefield: The Role of Higher Education in the ...
Navigating the Misinformation Minefield: The Role of Higher Education in the ...
 
Software testing for project report .pdf
Software testing for project report .pdfSoftware testing for project report .pdf
Software testing for project report .pdf
 
IPL Online Quiz by Pragya; Question Set.
IPL Online Quiz by Pragya; Question Set.IPL Online Quiz by Pragya; Question Set.
IPL Online Quiz by Pragya; Question Set.
 

Chemical reactions and their characteristics

  • 1. BY: VEENU GUPTA BY : VEENU GUPTA (CHEM)6/5/2020
  • 2. CHEMICAL REACTION  The transformation of chemical substance into a new chemical substance by making and breaking of bonds between different atoms is known as Chemical Reaction.  For example: Rusting of iron, the setting of milk into curd, digestion of food, respiration, etc.  A chemical reaction involves a chemical change in which substances react to form new substances with entirely new properties.  During a chemical reaction, there is a breaking of bonds between atoms of the reacting molecules to give products. BY : VEENU GUPTA (CHEM)6/5/2020
  • 3. Example of chemical reaction  The burning of magnesium in the air to form magnesium oxide(white ash) is an example of a chemical reaction. 2Mg(s) + O2(g) →2MgO(s)[Basic in nature]  Before burning in air, the magnesium ribbon is cleaned by rubbing with sandpaper. This is done to remove the protective layer of basic Magnesium carbonate from the surface of the magnesium ribbon.  2Mg(s) + O2(g)+ CO2(g) →2MgCO3(s) BY : VEENU GUPTA (CHEM)6/5/2020
  • 4. Reactants & Products Reaction: 2Mg(s) + O2(g) →2MgO(s)  Substances which take part in a chemical reaction are called reactants. Example: Mg and O2.  New substance formed after a chemical reaction is called a product. Example: MgO. BY : VEENU GUPTA (CHEM)6/5/2020
  • 5. Characteristics of Chemical Reactions  EVOLUTION OF GAS  CHANGE IN COLOUR OF SOLUTION  FORMATION OF PRECIPITATES  CHANGE IN STATE OF SUBSTANCE  CHANGE IN TEMPERATURE BY : VEENU GUPTA (CHEM)6/5/2020
  • 6. (i) Evolution of gas The chemical reaction between zinc and dilute sulphuric acid is characterised by the evolution of hydrogen gas. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g) ↑ BY : VEENU GUPTA (CHEM)6/5/2020
  • 7. REACTION BETWEEN ZINC GRANULES AND DILUTE SULPHURIC ACID BY : VEENU GUPTA (CHEM)6/5/2020
  • 8. Test For Hydrogen Gas  The gas evolved after reaction of acid with metal can be tested by bringing a lighted candle near it.  If the gas bums with a pop sound, then it confirms the evolution of hydrogen gas.  Burning with pop sound is the characteristic test for hydrogen gas. BY : VEENU GUPTA (CHEM)6/5/2020
  • 9. (ii) Change in Colour  When Iron reacts with copper sulphate , it forms Iron sulphate and copper metal and the colour of solution changes from blue to green and there is no formation of ppts. Fe (s) + CuSO4 (aq) → FeSO4 (aq) + Cu (s) (Blue colour ) (green colouration)  The chemical reaction between citric acid and purple coloured potassium permanganate solution is characterised by a change in colour from purple to colourless.  The chemical reaction between sulphur dioxide gas and acidified potassium dichromate solution is characterized by a change in colour from orange to green. BY : VEENU GUPTA (CHEM)6/5/2020
  • 10. iii) Formation of precipitates  When the solution of barium chloride reacts with the solution of sodium sulphate, white precipitates of barium sulphate are formed along with sodium chloride. BaCl2 (aq) + Na2SO4(aq) → BaSO4 (s) + 2 NaCl (aq) (White ppt)  When the solution of Lead Nitrate reacts with the solution of Potassium Iodide, Yellow precipitates of Lead Iodide are formed along with Potassium Nitrate. Pb(NO3)2 (aq) + 2 KI (aq) → PbI2 ( ↓ ) + 2 KNO3 (aq) (yellow ppt) BY : VEENU GUPTA (CHEM)6/5/2020
  • 11.  When the solution of Silver Nitrate reacts with the solution of sodium chloride then white ppts of silver chloride are formed along with sodium Nitrate  AgNO3 (aq) + NaCl (aq) → AgCl ( ↓ ) + NaNO3 (aq) (white ppt)  When the solution of Silver Nitrate reacts with the solution of sodium bromide then Yellow precipitates of silver bromides are formed along with sodium Nitrate  AgNO3 (aq) + NaBr (aq) → AgBr ( ↓ ) + NaNO3 (aq) (yellow ppt)  The chemical reaction between sulphuric acid and barium chloride solution is characterised by the formation of a white precipitate of barium sulphate. BaCl2(aq) + H2SO4(aq) → BaSO4(s) + 2HCl(aq) (white ppt) BY : VEENU GUPTA (CHEM)6/5/2020
  • 12. (IV) Change in state of substance  The combustion reaction of candle wax is characterised by a change in state from solid to liquid and gas (because the wax is a solid, water formed by the combustion of wax is a liquid at room temperature whereas, carbon dioxide produced by the combustion of wax is a gas).  There are some chemical reactions which can show more than one characteristics. BY : VEENU GUPTA (CHEM)6/5/2020
  • 13. [v] CHANGE IN TEMPERATURE BY : VEENU GUPTA (CHEM)6/5/2020
  • 14. Reactions involving increase in temperature:  The chemical reaction between quick lime & water to form slaked lime is characterized by rise in temperature . Ca0 + H2O → Ca(OH)2  The chemical reaction between zinc granules and dilute sulphuric acid is also characterised by rise in temperature. Zn + 2H2SO4 → ZnSO4 + H2  The chemical reaction between zinc granules and dilute Hydrochloric acid is also characterised by a rise in temperature. Zn + 2HCl → ZnCl2 + H2  Respiration is also a chemical reaction which involves increase in temperature.  Most of the combinations reactions occurs by an increase in temperature of the solution. BY : VEENU GUPTA (CHEM)6/5/2020
  • 15. REACTIONS INVOLVING DECREASE IN TEMPERATURE: i) Thermal Decomposition of Lead Nitrate 2Pb(NO3)2 (s) + Heat → 2PbO(s) + 4NO2(g) + O2(g) white brown gas ii) Thermal Decomposition of Ferrous Sulphate 2 FeSO4 (s) + Heat → Fe2O3 (s) + SO2 (g) + SO3(g) Ferrous Sulphate Ferric oxide Sulphur Sulphur (green) (brown) dioxide trioxide iii) Thermal Decomposition of calcium carbonate CaCO3(s) + Heat → CaO(aq) + CO2 (g) (Calcium Carbonate) ( calcium oxide) BY : VEENU GUPTA (CHEM)6/5/2020
  • 16. THANKS BY : VEENU GUPTA (CHEM)6/5/2020