JNTUH B.Tech R25 - Engineering Chemistry Important Questions

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JNTUH B.Tech R25 - Engineering Chemistry Important Questions

Unit 1 : Water and Its Treatment
  1. Define Water Hardness and explain its types and units of measurement.
  2. Explain the estimation of hardness of water by the Complexometric Titration method with numerical problems.
  3. Define Potable Water and list World Health Organization (WHO) specifications for drinking water.
  4. Explain the steps involved in the treatment of potable water.
  5. Describe the disinfection of potable water by chlorination and Breakpoint Chlorination.
  6. Explain Nalgonda Technique for defluoridation of water.
  7. Discuss boiler troubles such as scales, sludges, and Caustic Embrittlement.
  8. Explain internal treatment methods of boiler feed water: Calgon conditioning, phosphate conditioning, and colloidal conditioning.
  9. Explain softening of water by the Ion Exchange Process.
  10. Describe desalination of brackish water by Reverse Osmosis.

Unit 2 : Electrochemistry and Corrosion
  1. Define Electrode Potential and Standard Electrode Potential.
  2. State and apply the Nernst Equation in electrochemical calculations.
  3. Explain the construction and working of an Electrochemical Cell and calculate the EMF of a cell with numerical problems.
  4. Define a Galvanic Cell and explain cell representation.
  5. Classify different types of electrodes and explain Reference Electrode.
  6. Draw and explain the Standard Hydrogen Electrode (SHE).
  7. Draw and explain the Calomel Electrode.
  8. Explain the determination of pH of an unknown solution using SHE and Calomel electrode.
  9. Define Corrosion and discuss its causes and effects.
  10. Explain the chemical and electrochemical theories of corrosion.
  11. Describe Galvanic Corrosion, water-line corrosion, and Pitting Corrosion.
  12. Discuss the factors affecting the rate of corrosion.
  13. Explain Cathodic Protection by sacrificial anode and impressed current methods.

Unit 3 : Energy Sources
  1. Classify Battery into primary, secondary, and reserve batteries with suitable examples.
  2. Draw and explain the construction, working, and applications of the Zinc-Air Battery.
  3. Draw and explain the construction, working, and applications of the Lithium-Ion Battery.
  4. Differentiate between a battery and a Fuel Cell.
  5. Draw and explain the construction, working, and applications of the Direct Methanol Fuel Cell (DMFC).
  6. Define fuel and list the characteristics of a good fuel.
  7. Explain Calorific Value and distinguish between HCV and LCV.
  8. HCV=1/100[8080C+34500(H−O/8)+2240S] Explain and apply Dulong's Formula with numerical problems.
  9. Explain the refining of crude Petroleum.
  10. Classify cracking processes and explain Moving Bed Catalytic Cracking.
  11. State the composition and uses of Liquefied Petroleum Gas (LPG) and Compressed Natural Gas (CNG).
  12. Explain the Fischer-Tropsch Process for preparing synthetic fuels.
  13. Write short notes on Hythane and Green Hydrogen and their applications.

Unit 4 : Polymers
  1. Define Polymer and classify polymers based on origin with suitable examples.
  2. Classify polymers based on Tacticity with examples of isotactic, syndiotactic, and atactic polymers.
  3. Explain the types of polymerization and distinguish between Addition Polymerization and Condensation Polymerization.
  4. Explain the Free Radical Addition Mechanism.
  5. Define Plastic, Elastomer, and Fiber with applications.
  6. Write short notes on Polyvinyl Chloride (PVC), Buna-S Rubber, and Nylon 6,6.
  7. Differentiate between Thermoplastic and Thermosetting Plastic.
  8. Explain Fiber Reinforced Plastic (FRP) and its engineering applications.
  9. Define Conducting Polymer and classify conducting polymers with examples.
  10. Explain the mechanism of conduction in trans-Polyacetylene.
  11. List the applications of conducting polymers in engineering and electronics.
  12. Define Biodegradable Polymer and explain the preparation and applications of Polylactic Acid (PLA).

Unit 5 : Advanced Functional Materials
  1. Define Smart Materials and classify them with suitable examples.
  2. Explain the properties and engineering applications of Shape Memory Alloys.
  3. Write short notes on Nitinol and its applications.
  4. Define Piezoelectric Materials and explain their working principle.
  5. Discuss the structure, properties, and applications of Quartz.
  6. Define a Biosensor and explain its components.
  7. Describe the construction and working of the Amperometric Glucose Monitor Sensor.
  8. Explain the applications of Ultraviolet-Visible Spectroscopy in the analysis of pollutants in the dye industry.
  9. Discuss the use of Infrared Spectroscopy in night vision and security systems.
  10. Explain the principle and application of Passive Infrared Detection in Pollution Under Control (CO sensor) systems.
  11. Define Raman Spectroscopy and explain its application in tumour detection and medical diagnostics.
  12. Compare UV-Visible, IR, and Raman spectroscopy and state one important engineering or biomedical application of each.
 
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