Engineering Chemistry Unit 2 Notes AKTU (BAS102)

Unit 2: Spectroscopic Techniques and Stereochemistry – AKTU syllabus topics

• UV Spectroscopy: Principle and Instrumentation UV, Applications and Numericals UV
• IR Spectroscopy: Principle and Instrumentation IR, Applications and Numericals IR
• NMR Spectroscopy: Principle and Chemical Shift NMR, Applications and Numericals NMR
• Optical Isomerism: Isomerism Without Chiral Carbon, Chiral Drugs
• Geometrical Isomerism

Most asked AKTU PYQ questions from Unit 2

1. Q2b. Write the criteria for a molecule to show Raman, IR, Rotational and UV Spectra. Give the possible electronic transitions (UV spectra) in CH3CH2CH3, CH3CH=CH2, CH3CH=O and CH3-CH=CH-CH=CH-CH3. How many fundamental Vibrational degrees of freedom are expected for the following molecules: CO2, H2O and… (10 marks, 2020-21)
2. Q5a. Write Notes on chromophores and Auxochrome. Explain Transitions in UV spectra. (10 marks, 2020-21)
3. Q4b. (i) Explain the basic principle of IR Spectroscopy. What is the significance of Fingerprint region in IR spectroscopy? (ii) Identify the chromophoric groups present in cyclopentene, toluene, butanone and methanethiol in UV spectroscopy. (7 marks, 2022-23)
4. Q1g. What are Chromophores and Auxochromes? Give examples. (2 marks, 2022-23)
5. Q2b. Define the principle of Raman spectroscopy. Explain the term chromophore and auxochrome in UV Spectroscopy? (10 marks, 2021-22)
6. Q4b. Define infrared spectroscopy. Describe the various molecular vibrations in the technique and write the application of infrared spectroscopy. (10 marks, 2021-22)
7. Q4a. Explain the different types of electronic transitions involved in UV-Vis. Spectroscopy. Also explain the different types of absorption and intensity shifts taking place in UV-VIS spectroscopy. (10 marks, 2021-22)
8. Q4b. Explain the different types of molecular vibrations taking place in IR Spectroscopy. Differentiate between Functional group region and finger print region. (10 marks, 2021-22)
9. Q4a. Explain how IR spectroscopy is used to identify functional groups in organic compounds. Give at least four examples with their characteristic absorption frequencies. (7 marks, 2025-26)
10. Q4a. Comment on any TWO of the following: (i) Lambert-Beer's Law (ii) Molecular vibration (iii) Shielding and de-shielding effect. (7 marks, 2023-24)

Other Engineering Chemistry units

• Unit 1 Notes
• Unit 3 Notes
• Unit 4 Notes
• Unit 5 Notes

Engineering Chemistry previous year papers

• PYQ 2024-25
• PYQ 2023-24
• PYQ 2022-23

More Engineering Chemistry resources

• Important Questions: Unit 1 Important Questions
• Important Questions: Unit 2 Important Questions
• Important Questions: Unit 3 Important Questions
• Important Questions: Unit 4 Important Questions
• Important Questions: Unit 5 Important Questions
• Important Questions: Important Questions (All Units)

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• chemistry unit-2 notes crash course

Engineering Chemistry exam preparation

• Engineering Chemistry Unit 2 Important Questions
• Engineering Chemistry Unit 2 PYQ
• Engineering Chemistry Important Topics
• Engineering Chemistry Predicted Paper