Engineering Chemistry (BAS102) AKTU predicted paper 2026-27
AI-predicted paper for Engineering Chemistry based on 9 past papers (2022, 2023, 2024, 2025, 2026). NOT an official AKTU paper. Use as a revision tool only.
Paper pattern
- Section A: Attempt all questions. (14 marks)
- Section B: Attempt any THREE questions out of five. (21 marks)
- Section C: Attempt ONE question from each pair (a or b). (35 marks)
Why these questions
- Unit 1 (Atomic Structure, Advanced Materials and Green Chemistry) dominates — 21% avg weightage
- Asked every year: Nanomaterials, UV Spectroscopy
- Low priority (never asked): Geometrical Isomerism, Biogas Production
- Most repeated topic: Molecular Orbital Theory
Section A – 2-mark questions
- Draw the molecular energy level diagram for CO. Calculate its bond order and explain its magnetic behavior.
- Explain why CO2 is IR active and N2 is IR inactive molecule.
- Comment on the use of Al in place of Zn for cathodic protection of iron from rusting.
- How does Gross Calorific Value differ from Net Calorific Value?
- Give the preparations of Grignard reagent.
- What are nano materials? How they are different from bulk materials?
- How many NMR signals are expected in each of the following compounds – CH3CH2CH2Br, CH3OCH3
Section B – sample questions
- A sample of coal was burnt in a bomb calorimeter. The following data were obtained: Mass of coal = 0.92 g, Mass of water = 2500 g, Water equivalent of calorimeter = 600 g, Rise in temperature = 2.85°C, Percentage of hydrogen in coal = 3.2%. Calculate HCV and LCV of coal. (Latent heat of steam = 587 cal/g)
- (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.
- Draw and explain the Molecular Orbital (MO) diagrams of N₂ and O₂ molecules. Calculate their bond order and predict their magnetic behaviour.