Engineering Chemistry (BAS202) - AKTU Question Paper 2022-23
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 2022-23. 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 2022-23
Engineering Chemistry (BAS202) — complete question paper
- aDraw the molecular energy level diagram for CO. Calculate its bond order and explain its magnetic behavior
- bPredict the number of signals and their splitting patterns in 1H NMR of CH3CCl2CH3 and CH3OCH2CH3
- cTwo Isomers X and Y having molecular formula C3H6O give IR band near 3550 cm-1 and 1717 cm-1 respectively. Assign structural formula to X and Y consistent with their IR absorption band
- dWhat is electrochemical series? What is the potential of a half cell consisting of zinc electrode in 0.01M ZnSO4 solution at 25℃. E⸰= 0.763V
- eDifferentiate between Gross and Net calorific value
- fDiscuss the preparation and uses of Nylon- 6,6
- gGive the structures of FOUR compounds used as initiators in Free Radical polymerization
- aDiscuss the classification of liquid crystals. Distinguish between nematic and smectic liquid crystals. Give their important applications
- bAsymmetrically substituted compounds having even number of cumulative double bonds exhibit optical isomerism whereas compounds having odd number of cumulative double bonds exhibit geometrical isomerism. Explain giving proper reasons
- cDefine Corrosion. How can corrosion be minimized by sacrificial anodic protection and impressed current cathodic protection methods?
- dExplain with the help of a neat labeled diagram the working of bomb calorimeter. A 0.85g sample of solid fuel was completely combusted in excess of oxygen using bomb calorimeter. The rise in temperature of water in calorimeter was 2.8℃. Calculate the HCV of the fuel, if water taken in calorimeter is 2000g and water equivalent of calorimeter is 2200 g. Also calculate the LCV of the fuel. (%Hydrogen in fuel =2.5)
- ePredict the final product obtained when LiAlH4 reacts with: (i) CH3CHO (iii) CH3COOC2H5 (iv) CH3COC2H5 (v) CH3COOH (vii) CH3CHCH2O (epoxide)
- aWhat are nanomaterials? How the physical and chemical properties of nanoparticles vary with their size? Write important applications of nanomaterials
- bWrite a brief note on fullerenes, discussing their preparation, properties and applications
- aWhat is shielding and deshielding in NMR spectroscopy? A compounds having molecular formula C4H9Br gave the following signals in its 1H NMR spectra: Giving reasons assign the structures for the compound
- bHow do Auxochromes increase the coloring power of Chromophores? (i) A diene (molecular formula C4H6) shows an intense peak at λmax 217 nm while another diene (molecular formula C5H8) shows an intense peak at λmax 175 nm in their UV spectra. Giving proper explanation assign the structures to the two dienes. (ii) Why the λ max for the diene (I) is observed at a lower nm than diene (II) ? CCHH(II)
- aDiscuss the mechanism of electrochemical corrosion of iron with evolution of hydrogen. What will happen if a zinc rod is vertically half submerged under water?
- bDiscuss the construction and chemistry of charging/discharging of Lead Acid battery
- aHow are scales formed in boilers? Discuss four disadvantages of scale formation in boilers. The hardness of 10,000 litres of water sample was removed by passing it through a zeolite softener. The zeolite softener then required 200 litres of sodium chloride solution containing 200 g/L of NaCl for regeneration. Calculate the hardness of water sample
- aWhat are biodegradable polymers? Write a note on: (i) Polynucleotides (ii) Buna- S
- bDifferentiate between Thermoplastic and Thermosetting polymers. Discuss the preparation and uses of Phenol Formaldehyde resin
- bExplain briefly the ultimate analysis of coal. A sample of fuel having following percentage composition C= 70%, H = 6%, O = 4%, N = 3%, S = 3%, ash = 6% and moisture = 8%. Calculate the quantity of air required for complete combustion of 1 Kg of fuel
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 energy level diagram for CO. Calculate its bond order and explain its magnetic behavior
Appeared in: 2022-23 · 2023-24
Asymmetrically substituted compounds having even number of cumulative double bonds exhibit optical isomerism whereas compounds having odd number of cumulative double bonds exhibit geometrical isomerism. Explain giving proper reasons
Appeared in: 2022-23 · 2024-25
Discuss the construction and chemistry of charging/discharging of Lead Acid battery
Appeared in: 2022-23 · 2024-25
How are scales formed in boilers? Discuss four disadvantages of scale formation in boilers. The hardness of 10,000 litres of water sample was removed by passing it through a zeolite softener. The zeolite softener then required 200 litres of sodium chloride solution containing 200 g/L of NaCl for regeneration. Calculate the hardness of water sample
Appeared in: 2022-23 · 2024-25
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