201516 9 Chemistry Annualplan Vinay
Table of Contents
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June
Bonding and Structure
Ionic Bonding
- Ionic structures
- Properties of ionic compounds
- Formulae of ionic substances
- Lewis dot and pictorial representation of ionic bonding
Covalent Bonding
- Covalent Structures
- Properties of covalent compounds
- Lewis dot and pictorial representation of covalent bonding
- Allotropes of carbon
Learning outcomes
- Recognize the stability of noble gas configuration and tendency of other elements to attain this configuration through formation of chemical bonds.
- Explain the attainment of stable noble gas electronic configuration through transfer of electrons resulting in the formation of ionic bonds.
- Describe and justify some of the common properties of ionic compounds
- Explain the alternate mode of attainment of stable noble gas configuration through sharing of electrons resulting in the formation of covalent bonds
- Describe the formation of single, double and triple bonds and depict these with the help of Lewis-dot method.
- Describe and justify some of the common properties of covalent substances.
July
Chemical Reactions and Equations
- Concept of chemical change
- Representation of chemical change in the form of an equation
- Balancing chemical equations
- Significance of balanced chemical equation
- Different types of chemical reactions eq: displacement, exothermic, redox, thermal decomposition, combustion, double decomposition etc etc
- Redox Reactions in terms of Electron gain and Electron Loss.
- Concept of corrosion and it's prevention
Learning outcomes
- Write and balance simple chemical equations
- Describe the significance of a balanced chemical equation
- Explore the relationship between mole, mass and volume of various reactants and products
- Classify chemical reactions as combination, decomposition, displacement and double displacement reactions
- define oxidation and reduction processes (redox reactions) and correlate these with corrosion and rancidity and other aspects of daily life.
August and September
Acids, Bases and Salts
- Theories of acids, bases and salts
- Strengths of acids and bases
- Acid base neutralization
- Indicators
- Properties of acids bases and salts
- Strong and weak acids and bases
- Ionic product of water
- pH
- Importance of pH scale and it's calculations
- Preparation of soluble and insoluble salts
- Crystal hydrates
- Solubility of salts
- Manufacture and use of baking soda, washing soda, plaster of paris and bleaching powder.
Learning Outcomes
- Define the terms acid, base, salt and indicator
- Give examples of some common household acids, bases, salts and suggest suitable indicators
- Describe the properties of acids and bases
- Differentiate between strong and weak acids and bases
- Explain the role of water in dissociation of acids and bases
- Explain the term ionic product constant of wate
- Define pH
- Correlate the concentration of hydrogen ions and pH with neutral, acidic and basic nature of aqueous solutions
- Recognize the importance of pH in everyday life
- Define salts and describe their methods of preparation
- Correlate the nature of salt and the pH of its aqueous solution
- Describe the manufacture and use of baking soda, washing soda, plaster of paris and bleaching powder
October till mid November
Chemical calculations
- Relative atomic mass
- Concept of moles
- Moles and elements, compounds, gasses, solutions etc
- Moles and chemical equations
- Empirical and Molecular formulae
Learning outcomes
- Should be able to define relative atomic mass on carbon 12 scale.
- Should know mole concept and its connection to avagadro number.
- Application of moles to various elements, compounds, gases and solutions.
- Interrelation b/w mole, avagadro number, atomic weight and volume of gases and do the related calculations.
- Concept of emperical and molecular formula and finding them using the mole concept.
- Should be thorough with units in chemical calculations.
Mid November to December
Electrolysis
- Electrolysis of a few compounds like copper sulphate, brine, water etc
- Electrolysis of aqueos solutions
- Purification of copper
- Electroplating
- Redox reactions
- Tests for aqueuos cations
Learning Outcomes
- Understanding electolysis as a relation b/w electricity and chemical changes.
- Electrolysis of lead bromide, aluminium oxide, water, copper sulphate etc.
- Application of electrolysis in electro metallurgy, electro plating and electro refining.
- Should know electro refining of copper in detail.
- Should be able to write ionic equations for oxidation adn reduction.
Januaury and February
Chemical reactivity and Metal extraction
- Metal reactions with acids, oxygen and water
- Reactivity of metals and uses
- Discovery of metals
- Metals extraction from ores
- Recycling metals
- Rusting of iron
- Alloys
Learning Outcomes
- Reaction of metals with acids, oxygen, steam etc.
- Reactivity series and its applications in metal extraction and purification.
- Competition reactions in solid and aqueuos solutions.
- Extraction of unreactive, faily reactive and very reactive metals.
- Extraction of iron and zinc in detail.
- Concept of rust and its prevention.
- Should know various alloys and its importance.
- Should be thorough with chemical reactions involved in extraction procedures.