9 Chemistry Annualplan Vinay

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.
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