Engineering Chemistry (BAS202) - AKTU Question Paper 2024-25
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 2024-25. 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 2024-25
Engineering Chemistry (BAS202) — complete question paper · 70 marks · 3 Hours
- aArrange the following molecules or ions in increasing order of bond length. O2, O2++& O2-2
- bHow many NMR signal s are expected in each of the following compounds –CH3CH2CH2Br, CH3OCH3, CH3CH2CH2Br, CH3OCH3
- cWhy does part of a nail inside the wood under goes corrosion explain it?
- dWhy zeolite softener is not recommended for obtaining feed water for high pressure boilers?
- eEthan (C2H6 )not forms polymer but ethene(C2H4) forms polymer why?
- fF2 is diamagnetic while O2 is paramagnetic, how?
- gCalculate the hardness of water sample containing impurity of Ca (HCO3)281 mg/l. Give your answer in °F also
- aShow the molecular orbital’s of HF molecule and calculate the bond
- bAmong H 2, HCI, CO 2, H 2O molecules identify which will be IR active 2 K3 and why? Explain the different type of vibrations observed in CO2
- cExplain why a pure metal rod half immersed vertically in water starts corroding at the bottom
- dExplain the Lime –Soda process of water softening. What are the
advantages and limitations of this process? Calculate the amount of lime and soda required for the treatment of 10,000 litr es of water whose analysis is as follows (in mg/L): Mg(HCO 3)2=73; CaSO 4,=102; MgCl2=95; MgSO4,=24; Ca(HCO3)2=121.5; NaCl= 55. Ca(HCO3)2=121.5; NaCl= 55
- eWhat is conducting polymer? Which conducting polymer is generally use in electronic touch screen. Give the Advantages and limitations of conducting polymers
- aIllustrate any five principles of Green Chemistry and the give green synthesis method for preparation of Paracetamol
- bA XY2molecule has a bond order of 2.5. Propose possible energy level diagram with electronic configurations for this molecule, also explain its magnetic character also
- aAsymmetrically substituted compounds having even number of cumulative double bonds exhibit optical isomerism whereas compounds having odd number of double bonds exhibit geometrical isomerism. Explain giving proper reasons
- bWhy Tetra Methyl Silane is used as reference in NMR spectroscopy? Give the number of 'H NMR signals and their splitting pattern in the following compounds: (i) (CH 3)3COCH3 (ii) CH 3CH(Cl)CH2Cl, (iii) CH3COOH (iv) C6H5OH. CH3COOH (iv) C6H5OH
- aDiscuss the construction and chemistry of charging/discharging of Lead Acid battery
- bWhat are the constituents of cement? Discuss its manufacturing process with the mechanism of setting and hardening of cement
- aExplain the different parameters that are determined in the proximate analysis of coal. On burning 0.92g of a solid fuel in a bomb calorimeter, the temperature of 3300g of water increased by 2.42°C. Water equivalent of calorimeter and latent heat of steam are 385.0g and 587.0cal/g, respectively. If the fuel contains 0.7% hydrogen, calculate its GCV and NCV
- bHow are scales formed in boilers? Disc uss four disadvantages of scale formation in the 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 organ metallic compounds? How is Grignard reagent prepared? Give the reaction of CH 3CH2MgBr with HCHO, CH 3CHO and CH3COCH3?
- bWhat is Vulcanization of rubber? Write down the preparation and uses of (any three) : (i) Nylon -6,6 (ii) Bakelite (iii) BUNA -N (iv) Neoprene Rubber (v) Teflone. Nylon-6,6 (ii) Bakelite (iii) BUNA-N (iv) Neoprene Rubber (v) Teflone
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)
Illustrate any five principles of Green Chemistry and the give green synthesis method for preparation of Paracetamol
Appeared in: 2023-24 · 2024-25
Asymmetrically substituted compounds having even number of cumulative double bonds exhibit optical isomerism whereas compounds having odd number of 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? Disc uss four disadvantages of scale formation in the 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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