ECET-2020 SYLLABUS: CHEMISTRY (Common for Diploma)
Unit I: Fundamentals of Chemistry: Atomic structure: Introduction-Fundamental particles of an atom – Bohr‘s theory – Quantum numbers – Aufbau’s principle – Hund‘s rule – Pauli‘s exclusion principle- Electronic configurations of elements up to atomic number 30, shapes of s, p, d orbitals.
Chemical Bonding: Introduction – Types of chemical bonds – Ionic bond – NaCl and MgO – Characteristics of ionic compounds – Covalent bond – H2, O2, N2 – Characteristics of covalent compounds – Coordinate covalent bond –Definitions and examples, [NH4+], [NH3BF3] .
Oxidation-Reductions: Electronic concept of Oxidation and Reduction – Oxidation number and its calculations – Differences between oxidation number and valency.
Unit-II: Solutions: Introduction – Definition of solution, solute and solvent – Classification of solutions based on physical state – Mole concept – Molecular weight, equivalent weight of acids, bases and salts – Molarity, Normality and numerical problems.
Unit-III: Acids and Bases: Introduction – Theories of acids and bases – Arrhenius theory – Bronsted – Lowry theory – Lewis theory – Ionic product of water – pH and related numerical problems pertaining to strong acids and bases – Definition of buffer – Types of buffer – Acidic buffer ( Acetate buffer) – Basic buffer (Ammonia buffer) – Applications.
Unit – IV: Principles of Metallurgy: Characteristics of metals and distinction between metals and non-metals. Definitions of metallurgy, ore, gangue, flux, slag – Concentration of ore by froth floatation process – Roasting, calcination, smelting – Alloys – Composition and uses of brass, German silver and nichrome.
Unit-V: Electrochemistry: Conductors – Metallic and electrolytic conductors- Insulators, electrolytes (strong and weak) – Arrhenius theory of electrolytic dissociation – Electrolysis of fused NaCl – Faraday‘s laws of electrolysis- Numerical problems – Galvanic cell – Electrode potential – Standard electrode potential – Electro chemical series – emf and numerical problems on emf of a cell.
Unit –VI: Corrosion: Introduction – Definition of corrosion – Factors influencing rate of corrosion – Electrochemical theory of corrosion- Composition cell, stress cell and concentration cell – Rusting of iron and its mechanism – Prevention of corrosion by (a) protective coatings (b) cathodic protection (sacrificial anode method and impressed voltage method).
Unit-VII: Water Technology: Introduction – Soft and hard water – Causes of hardness – Types of hardness – Disadvantages of hard water – Degree of hardness, units and Numerical problems– Softening methods – Permutit process – Ion exchange process – Characteristics of drinking water – Municipal treatment of water for drinking purpose – Osmosis and reverse Osmosis – Advantages of reverse Osmosis.
Unit-VIII: Polymers: Introduction – Polymerization – Types of polymerization – Addition, condensation polymerization with examples – Plastics – Types of plastics – Advantages of plastics over traditional materials – Disadvantages of using plastics – Thermo plastics and thermo setting plastics– Differences between thermo plastics and thermo stetting plastics – Preparation and uses of the following plastics: 1. Polythene, 2. PVC, 3. Teflon, 4. Polystyrene, 5.Urea formaldehyde 6. Bakelite – Rubber – Natural rubber – Processing of rubber from latex – Vulcanization – Elastomers – Butyl rubber, Buna-s, Neoprene rubber and their uses.
Unit-IX: Fuels: Definition and classification of fuels based on physical state and occurrence – Characteristics of good fuel – Composition and uses of gaseous fuels. (a) Water gas, (b) producer gas, (c) natural gas, (d) coal gas, (e) bio gas, (f) acetylene.
Unit-X: Environmental Chemistry: Introduction – Environment – Lithosphere, hydrosphere, atmosphere biosphere, biotic component, energy component pollutant, receptor, sink, particulate, DO, BOD, Threshold limit value, COD – Air pollution – Causes-Effects- Forest resources, uses and over exploitation – Deforestation – Acid rain – Green house effect – Ozone depletion – Control of Air pollution – Water pollution – Causes – Effects – Control measures – Renewable and Non Renewable energy sources – Concept of ecosystem – Producers, consumers and decomposers – Biodiversity, threats to Biodiversity.