#50 𝚁𝚎𝚟𝚒𝚜𝚒𝚘𝚗 𝚘𝚏 𝚌𝚕𝚊𝚜𝚜𝚒𝚏𝚒𝚌𝚊𝚝𝚒𝚘𝚗 𝚘𝚏 𝚎𝚕𝚎𝚖𝚎𝚗𝚝 | Applied Chemistry Polytechnic 1st semester by Rahul sir

Periodic Table| MCQ most questions |Applied Chemistry Polytechnic 1st semester by Rahul sir

Welcome to India's No. 1 Polytechnic,ITI and competition official classes
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1. Atomic Structure, Periodic Table and Chemical Bonding (14 periods)

2. Fuelsand Lubricants (18 periods)
3. Water (14 periods)
3.1 Demonstration of water resources on Earth using pie chart.
3.2 Classification of water – soft water and hard water, action of soap on hard
water, types of hardness, causes of hardness, units of hardness – mg per liter
(mgL-1) and part per million (ppm) and simple numerical, pH and buffer
solutions and their applications.
3.3 Disadvantages caused by the use of hard water in domestic and boiler feed
water. Primming and foaming and caustic embrittlement in boilers.
3.4 Removal of hardness -Permutit process and Ion-exchange process.
3.5 Physico-Chemical methods for Water Quality Testing
a) Determination of pH using pH meter, total dissolved solids (TDS)
b) Testing and Estimation of- alkalinity, indicator their types and application
total hardness by EDTA method and O’Hener’s Method. (chemical
reaction of EDTA method are excluded).
c) Understanding of Indian Water Quality standards as per WHO
3.6 Natural water sterilization by chlorine and UV radiation and reverse osmosis.
3.7 Municipality waste water treatment. Definition of B.O.D and C.O.D.

4. Electrochemistry (4 periods)
Redox Reaction, Electrode Potential, Nernst equation, Electrochemical cell (Galvanic
and Electrobytes); Nernst equation.

5. Corrosion and its Control (10 periods)
5.1 Definition of corrosion and factors affecting corrosion rate.
5.2 Theories of
a) Dry (chemical) corrosion- Pilling Bedworth rule
b) Wet corrosion in acidic atmosphere by hydrogen evolution mechanism
5.3 Definition of passivity and galvanic series
5.4 Corrosion control:
a) Metal coatings – Cathodic protection, Cementation on Base Metal
Steel –Application of Metal Zn (Sheradizing),Cr (Chromozing) and Al
(Calorizing), Sacrificial protection and impressed current voltage
b) Inorganic coatings – Anodizing and phosphating,
c) Organic coatings - use of paints varnishes and enamels
d) Internal corrosion preventive measures- alloying (with reference to
passivating, neutralizing and inhibition) and heat treatment (quenching,
annealing)

6. Organic compounds, Polymers and Plastics (10 periods)
6.1 Classification of organic compounds and IUPAC Nomenclature
6.2 Definition of polymer, monomer and degree of polymerization
6.3 Brief introduction to addition and condensation polymers with suitable
examples (PE, PS, PVC, Teflon, Nylon -66 and Bakelite)
6.4 Definition of plastics, thermo plastics and thermo setting plastics with suitable
examples, distinctions between thermo and thermo setting plastics
6.5 Applications of polymers in industry and daily life


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