B.TechSemester 12022-23Engineering ChemistryBAS-102

Engineering Chemistry (BAS-102) - AKTU Question Paper 2022-23

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 2022-23. 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:2022-23

University:AKTU / UPTU

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Questions Asked in 2022-23

Engineering Chemistry (BAS-102) — complete question paper

Section AAttempt all questions in brief. 2 x 7 = 14

a
On the basis of MO theory calculate the bond order of NO. Will NO be paramagnetic or diamagnetic?
b
What are Chiral Drugs? Give examples of Chiral Drugs
c
Give important applications of electrochemical series
d
A water sample is found to contain 40.5 mg/L Ca(HCO3)2; 14.6 mg/L Mg(HCO3)2; 22.2 mg/L CaCl2; 24 mg/L MgSO4 and 18mg/L NaCl. Calculate the temporary and permanent hardness of the water sample
e
Discuss the preparation and uses of PTFE
f
How does Gross Calorific Value differ from Net Calorific Value?
g
What are Chromophores and Auxochromes? Give examples

Section BAttempt any three of the following: 7 x 3 = 21

a
Describe different types of liquid crystals. Discuss the applications of Liquid crystals
b
What is Atropisomerism? Give five examples of compounds showing optical isomerism in the absence of chiral carbons
c
Explain the setting and hardening of cement with relevant chemical reactions involved during the process
d
Explain the stages involved in production of biogas from cattle dung. Compare the impact of use of biogas and coal on the environment
e
What are organo metallic compounds? Discuss the preparation of Grignard Reagent.Predict the final product obtained when C2H5MgBr reacts with (i) HCHO (ii) CH3CHO (iii) (CH3)2CO? (i) HCHO (ii) CH3CHO (iii) (CH3)2CO?

Section CAttempt any one part of the following: 7 x 1 = 7

a
Describe the structure and applications of Graphite and Fullerenes. Explain the reasons for electrical and lubricating properties of graphite
b
What are Carbon Nano Tubes? Discuss the applications of nanomaterials
a
Why is TMS used as an internal standard in NMR spectroscopy? Two isomeric compounds A and B have molecular formula C10H14. The 1H NMR spectra of these isomers gave the following data: Isomer A: δ 1.30 (9H,s); δ 7.28 (5H, s) Isomer B: δ 0.88 (6H, d); δ 1,86 (1H, m); δ 2.45 (2H, d); δ 7.12 (5H, s) Giving reasons assign the structures for the two isomers
b
(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
a
Discuss the mechanism of electrochemical theory of corrosion by absorption of oxygen. What effect will increased oxygen supply have on such corrosion? How can corrosion be minimized by proper design?
b
Discuss the differences between anodic and cathodic metallic coatings. Explain the processes of Galvanizing and Electroplating? What will happen if an iron ship travelling in the sea is attached through an insulated metallic wire to a small sheet of magnesium?

Explain the zeolite 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 litres of water whose analysis is as follows (in mg/L):
Mg(HCO3)2=73; CaSO4=102; MgCl2=95; MgSO4=24; Ca(HCO3)2=121.5;
NaCl= 55.
Mg(HCO3)2=73; CaSO4=102; MgCl2=95; MgSO4=24; Ca(HCO3)2=121.5;
NaCl= 55

b
Explain 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℃. 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
a
(i) Differentiate between Chain Growth and Step Growth polymerization. (ii)Outline the process of vulcanization of rubber. Describe the preparation, important properties and uses of Butyl rubber or Kevlar
b
(i) Differentiate between Thermosetting and Thermoplastic polymers. (ii)Giving examples write a brief note on conducting polymers

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 — BAS-102

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)

What are organo metallic compounds? Discuss the preparation of Grignard Reagent.Predict the final product obtained when C2H5MgBr reacts with (i) HCHO (ii) CH3CHO (iii) (CH3)2CO? (i) HCHO (ii) CH3CHO (iii) (CH3)2CO?

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

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