B.TechSemester 12023-24Engineering ChemistryBAS102
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Engineering Chemistry (BAS102) - AKTU Question Paper 2023-24

B.Tech · Semester 1 · Free PDF Download

This is the official AKTU Engineering Chemistry Previous Year Question Paper for B.Tech Semester 1, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 1
Session:2023-24
University:AKTU / UPTU

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Questions Asked in 2023-24

Engineering Chemistry (BAS102) — complete question paper · 70 marks · 3 Hours

Section AAttempt all q u e s t i o n s i n b r i e f .
  • a
    Explain molecular self-assembly method for preparing the nano materials. 2
  • b
    A solution shows a transmittance of 20%, when kept in a cell o f 2.5 cm thickness. Calculate its concentration if the molar absorptivity coefficient is 12000dm3mol-1cm-1
  • c
    Analyze the effect of polar solvent on π → π * transition in a cetone. 2
  • d
    Calculate the emf of the cell , if the standard emf of the cel l is 1.54 V. Write cell reaction also.       CatsAgMAgMZnsZn 02 25002.02.0 
  • e
    What is role of Gypsum in cement manufacturing? 2
  • f
    A sample of coal contains 60% Carbon, 33% Oxygen, 6.0% Hydroge n, 0.5% Sulphur, 0.2% Nitrogen and 0.3% Ash. Calculate its GCV
  • g
    What do you understand by Polymer Blends? 2
Section BAttempt any three o f t h e f o l l o w i n g :
  • a
    Draw molecular orbital diagram of O 2 and NO. Calculate their bond order and comment on their magnetic behaviors
  • b
    Illustrate the shielding and Deshielding effect involved in NMR spectroscopy. In the P-NMR spectrum recorded at 293 K, an Organic compound (C3H7NO) exhibited signals at δ 7.8 (1H, singlet), δ 2.8 (3H, singlet) a nd δ 2.6 (3H, singlet). Find the structure of compound
  • c
    Illustrate the various steps involved during manufacturing o f Portland cement with the help of a labelled diagram Give the chemical reactions involved during setting and hardening of cement
  • d
    Compare merits and demerits of Zeolite and Ion Exchange method. 7
  • e
    Discuss the preparation of Grignard Reagent. Predict the fin al product obtained when C2H5MgBr reacts with (i) HCHO (ii) CH3CHO (iii) (CH3)2CO (iv) CO2
Section CAttempt any one p a r t o f t h e f o l l o w i n g :
  • a
    Illustrate any five principles of Green Chemistry and the gi ve green synthesis method for preparation of Paracetamol
  • b
    Classify Liquid crystals on the basis of temperature and giv e their applications in various fields
  • a
    Asymmetrically substituted compounds having even number of c umulative double bonds exhibit optical isomerism whereas compounds having odd number of cumulative double bonds exhibit geometrical isomerism. Explain giving proper reasons
  • b
    Write short notes on (any TWO) (i) UV Shift (ii) Applications of IR spectroscopy (iii)Molecular vibration
  • a
    Illustrate the working, diagrammatic representation and cell reaction of Lead Acid storage battery during charging and discharging
  • b
    Briefly explain wet corrosion. How corrosion can be prevente d by Metallic coating and using corrosion inhibitors?
  • a
    With the help of a neat diagram, explain the working of Bomb calorimeter. A sample of coal contain C=89%, H=8% and ash=3%. The following data were obtained when the above coal was tested in bomb calorimeter: Weight of coal burnt= 0.85 g; Weight of water take n= 850 g; Water equivalent of bomb and calorime ter= 3500 g; Rise in temperature = 2.5˚C; Fuse wire correction = 10.0 cal ; Acid correction= 50.0 cal; Cooling correction= 0.03 ˚C. Assuming that the latent heat of condensation of steam as 580 cal/gm, Calculate gross and net calorific values of the coal
  • b
    Illustrate the princip le of lime soda process. Analysis of raw water gives the following data: Ca 2+ = 20 ppm, Mg 2+ = 25 ppm, CO2 = 30 ppm, HCO3- = 150 ppm, K+ = 10 ppm. Analysis of treated water: CO3 2- = 45ppm, OH- = 68 ppm. Calculate the Lime (87% pure) and Soda (91% pure) req uired to soften 10 6 litre of sample water
  • a
    Classify conducting polymers and mention their important app lications 7
  • b
    Write the preparation (structu re of monomer and polymer), properties & applications of the any THREE polymers: (i) Buna –S (ii) Nylon 6,6 (iii) Polyester (iv) Kevlar (v) Bakelite

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

Repeated Questions — BAS102

Questions that appeared in more than one session, found by comparing 4 years of Engineering Chemistry papers (2022-23, 2023-24, 2024-25, 2025-26)

3x

Discuss the preparation of Grignard Reagent. Predict the fin al product obtained when C2H5MgBr reacts with (i) HCHO (ii) CH3CHO (iii) (CH3)2CO (iv) CO2

Appeared in: 2022-23 · 2023-24 · 2025-26

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