Engineering Chemistry (BAS202) - AKTU Question Paper 2023-24
B.Tech · Semester 2 · Free PDF Download
This is the official AKTU Engineering Chemistry Previous Year Question Paper for B.Tech Semester 2, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.
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Questions Asked in 2023-24
Engineering Chemistry (BAS202) — complete question paper · 70 marks · 3 Hours
- aCompare and arrange the following in the increasing order of stability: O2, O2+, O2
- bHow nanomaterials are different from bulk materials?
- cWhat is the selection rule for the molecule to show NMR spectrum?
- dExplain, which one will exhibit higher value of λ max in UV/Visible spectra of CH3COCH3 and CH2=CHCOCH3
- eCalculate the EMF of the Daniel cell at 25°C when the concentration of ZnSO 4 and CuSO4 are 0.001M and 0.01M respectively. The standard potential of the cell is 1.1 Volt
- fShow with the help of reactions, how scale formation can be prevented by Calgon conditioning?
- gClassify polymers on the basis of tacticity (stereochemistry)
- aWhat are the Anisotropic crystals? How it is classified on the b asis of temperature? Also give important applications
- bExplain the Absorption and Intensity shift in the UV spectroscopy and support with examples. Illustrate, the effect of polar and non-polar solvent on π - π* transition in acetone?
- cExplain the mechanism of Hydrogen evolution and Oxygen absorption with the help of electrochemical theory of corrosion. Explain noble and sacrificial metallic coatings for preventing corrosion
- dIllustrate the principle and working of the Zeolite process. A zeolite softener was regenerated by passing 50L of NaCl solution having strength of 40% of NaCl. Calculate the hardness of water if 10000L of hard water was softened by using this zeolite
- eIllustrate the preparation of Grignard Reagents and predict the final product obtained when C2H5MgBr react with (i) HCHO (ii) CH3CHO (iii) (CH3)2CO
- aDraw the molecular orbital diagram of NO and N 2 molecules. Calculate their bond order and predicts their magnetic behavior
- bDiscuss any FOUR principles of Green Chemistry. Explain the conventional and Green route synthesis of paracetamol
- aComment on any TWO of the following: (i) Lambert- Beer’s Law (ii) Molecular vibration (iii)Shielding and de - shielding effect
- b(i)Why Tetra Methyl Silane is used as an internal indicator in NMR spectroscopy? A compound have molecular formula C10H14. The H1 NMR spectra of the molecule gave the following data: A: δ 1.30 (9H, singlet); δ 7.28 (5H, singlet) Giving reasons deduce the structures for the molecule. A: δ 1.30 (9H, singlet); δ 7.28 (5H, singlet) (ii)How many NMR signals are expected in the NMR spectra of ethanol in aqueous condition? Explain their splitting
- aDifferentiate between primary and Secondary batteries? Discuss the various reactions involve during the charging and discharging of lead storage battery
- bDescribe the various steps involved during Portland cement manufacture by rotary kiln method. Explain the setting and hardening of cement with relevant chemical reactions involved
- aExplain the principle of water softening by lime – soda process. Calculate the amount lime and soda required for 100,000 L of water containing the following salt: Mg 2+= 48 ppm, Ca 2+ = 120ppm, FeSO4.7H2O = 139 ppm, CO2=88ppm, NaNO3 = 8.9ppm, HCO3- = 122 ppm
- bWith the help of a neat diagram, explain the working of Bomb calorimeter. A sample of coal contain C=91%, H=6%, N=2% and ash=1%. The following data were obtained when the above coal was tested in bomb calorimeter: Weight of coal burnt= 0.97 g Weight of water taken= 800 g Water equivalent of bomb and calorimeter= 2100 g Rise in temperature= 2.48˚C Fuse wire correction = 12.0 cal Acid correction= 58.0 cal Cooling correction= 0.015 ˚C Assuming that the latent heat of condensation of steam as 587cal/g, Calculate gross and net calorific values of the coal
- aGive preparation, properties and applications of following polymer: (i) Neoprene (ii) Terylene (iii) Nylon 6,6
- bClassify the conducting polymers and explain its different types also. Mention its applications also
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 — BAS202
Questions that appeared in more than one session, found by comparing 3 years of Engineering Chemistry papers (2022-23, 2023-24, 2024-25)
Draw the molecular orbital diagram of NO and N 2 molecules. Calculate their bond order and predicts their magnetic behavior
Appeared in: 2022-23 · 2023-24
Discuss any FOUR principles of Green Chemistry. Explain the conventional and Green route synthesis of paracetamol
Appeared in: 2023-24 · 2024-25
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