1st Semester Chemistry Notes PDF, Jharkhand Polytechnic Notes PDF: This diploma syllabus for the 1st-semester chemistry has been named “Engineering Chemistry”. This is intended to teach you about Atomic Structure, Electrochemistry, Metal & Alloys, Non-Metallic Materials and Environmental Effects i.e Air & Water Pollution, and Preventive Environmental Management (PEM) Activities.
Check also: 1st Semester Syllabus of Jharkhand Polytechnic
Download 1st-semester Chemistry notes for Polytechnic from below. These notes are prepared by the students of Jharkhand Polytechnic based on the syllabus issued by the Jharkhand University of Technology (JUT), Ranchi.
| Chapter Name | Download |
|---|---|
| Atomic Structure | Download PDF |
| Electrochemistry | Download PDF |
| Metals | Download PDF |
| Alloys | Download PDF |
| Non-Metallic Materials | Download PDF |
| Environmental Effects | Download PDF |
Chemistry is a basic science subject which is essential to all engineering courses. It gives knowledge of engineering materials, their properties, related applications & selection of materials for engineering applications.
Due to technological progress, there are hazardous effects on the environment & human life. The core knowledge of environmental effects will bring awareness in students about the precautions & preventions to be taken to reduce the ill effects.
This subject will generate curiosity about carrying out further development in engineering fields.
Atomic Structure
Definition of Atom, Fundamental Particles of Atom – their Mass, Charge, Location, Definition of Atomic no, Atomic Mass no., Isotopes & Isobars, & their distinction with suitable examples, Bohr’s Theory, Definition, Shape of the orbitals & the distinction between Orbits & Orbitals, Hund’s Rule, Aufbau’s Principle (till Atomic no. 30), Definition & types of valency (Electrovalency & Covalency), Octet Rule, Duplet Rule, Formation of Electrovalent & Covalent Compounds e.g. NaCl, CaCl2, MgO, AlCl3, CO2, H2O, Cl2, NH3, C2H4, N2, C2H2. The distinction between electrovalent & covalent compounds.
Electrochemistry
Electrolytic dissociation, Arrhenius Theory of Ionisation, Degree of Ionisation & factors affecting the degree of ionization. Significance of the terms involved in Electrolysis- Such as Conductors, Insulators, Dielectrics, electrolytes, Non-Electrolyte, Electrolysis, Electrolytic Cells, and Electrodes. Mechanism of Electrolysis. Concept of electrode potential such as reduction potential & oxidation potential. Electrochemical Series, Electrolysis of CuSO4 Solution by using Cu Electrode & Platinum Electrode, Electrolysis of NaCl solution & fused NaCl by using carbon electrode, Faraday’s first & second law of Electrolysis & Numericals, Electrochemical Cells & Batteries, Definition, types such as Primary & Secondary Cells & their examples. Construction, Working & Applications of Dry Cell & Lead – Acid Storage Cell, Applications of Electrolysis such as Electroplating & Electro refining, Electrometallurgy & Electrotyping.
Metals & Alloys
Metals
Occurrence of Metals, Definition of Metallurgy, Mineral, Ore, Gangue, Flux & Slag, Mechanical Properties of metals such as Hardness, Toughness, Ductility, Malleability, Tensile strength, Machinability, Weldability, Forging, Soldering, Castability. Stages of Extraction of Metals from its Ores in detail i.e. Crushing, Concentration, Reduction, Refining. Physical Properties & Applications of some commonly used metals such as Fe, Cu, Al, Cr, Ni, Sn, Pb, Zn, Co, Ag, W.
Alloys
Definition of Alloy, Purposes of Making alloy. Preparation Methods, Classification of Alloys such as Ferrous & Non-Ferrous & their examples. Composition, Properties & Applications of Alnico, Duralumin, Dutch Metal, German Silver / Nickel Silver, Gun Metal, Monel metal, Wood Metal, Babbit metal.
Non Metallic Materials
Plastics (Marks: 04)
Definition of Plastic, Formation of Plastic by Addition & Condensation Polymerisation by giving e.g. of Polyethylene & Bakelite plastic Respectively, Types of Plastic, Thermosoftening & Thermosetting Plastic, with Definition, Distinction & Compounding of Plastics – Resins, Fillers, Plasticizers, Accelerators, Pigments & their examples, Engineering Applications of Plastic based on their properties.
Rubber (Marks: 04)
Natural Rubber: Its Processing, Drawbacks of Natural Rubber, Vulcanisation of Rubber with Chemical Reaction. Synthetic Rubber: Definition, Distinction Between natural & synthetic rubber. Properties of rubber such as elasticity, abrasion resistance, stress & strain and related engineering. application.
Thermal Insulating Materials (Marks: 04)
Definition, & types. Characteristics of insulators. Thermal insulators. Properties & Applications of glass wool, Asbestos, Cork.
Environmental Effects (Awareness Level)
Pollution & Air pollution (Marks 10)
Definition of pollution & pollutant, Causes of Pollution, Types of Pollution – Air & Water Pollution.
Air Pollution
Definition, Types of Air pollutants their Sources & Effects, Such as Gases, Particulates, Radio Active Gases, Control of Air Pollution, Air Pollution due to Internal Combustion Engine & Its Control Methods, Deforestation their effects & control measures. Causes, Effects & control measures of Ozone Depletion & Green House Effects.
Water Pollution & Wastes (Marks 12)
Definition, Causes & Methods of Preventing Water Pollution, Types of Waste such as Domestic Waste, Industrial Waste, their Physical & Biological Characteristics, Concept & significance of BOD, COD, Biomedical Waste & E-Waste, their Origin, Effects & Control Measures. Preventive Environmental Management (PEM) Activities.
