B.TechSemester 12021-22Engineering ChemistryKAS-102T
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Engineering Chemistry (KAS-102T) - AKTU Question Paper 2021-22

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 2021-22. 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:2021-22
University:AKTU / UPTU

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Questions Asked in 2021-22

Engineering Chemistry (KAS-102T) — complete question paper

Section AAttempt all q u e s t i o n s i n b r i e f . 2 x 10 = 20
  • a
    Explain impurit y defects. 2 1
  • b
    Why Teflon is highly che mically resistant? 2 5
  • c
    What is selection rule? 2 2
  • d
    On the basis of IR spectra, dis tinguish between intermolecular and intramolecular hydrogen bonding
  • e
    Calculate Phase, Component and Degree of freedom in the given
    system
  • f
    Why calgon is better than other in ternal process for water treatment? 2 4
  • g
    Give the preparations of Grignard reagent. 2 5
  • h
    Why O 2 is paramagnetic and N2 is diamagnetic? 2 1 i. How can sulfur be estimated by ultimate method? 2 5 j. How much rust (Fe 2O3.3H2O) can be produced by 3g of iron? 2 3
Section BAttempt any three o f t h e f o l l o w i n g : 3 x 10 = 30
  • a
    With the help of Molecular or bital theory how Metallic bondi ng in metals can be explained?
  • b
    Write the criteria for a mol ecule to show Raman, IR, Rotational and UV Spectra. Give the possible elec tronic transitions (UV spectra) in- CH3CH2CH3, CH3CH=CH2, CH3CH=O and CH3-CH=CH-CH=CH-CH3. How many fundamental Vibrational degrees of freedom are expected. for the following molecules: CO2, H2O and C2H?
  • c
    The percentage compositi on of coal sample is: C = 70 %, H2 = 10 %, O21%,S= 5%,ash = 0.5 %and N = 0.3 %. i.Calculate the quantity of air needed for complete combustion of 1kg of coal, if 60% excess of air is supplied. ii. Calculate the gross and net calorific value of the coal using dulong’s formula
  • d
    Give significance of Nernst equation. Consider a cell reaction: Zn / Zn 2+ [0.1M] || Cu 2+[0.2M] / Cu Standard reduction potential of Zn 2+ and Cu 2+ are -0.76V and 0.34V respectively. Write half-cell reactions, complete cell reaction and calculate EMF of the cell
  • e
    Distinguish between addition an d condensation polymerization . Give monomers and one use each of PMMA, Polyethylene, Bakelite, PVC, nylon6,6.,Buna S. AKTU_ AKTU_
Section CAttempt any one p a r t o f t h e f o l l o w i n g :
  • a
    i. Explain types of Non stoichi ometric defects with examples. ii. Calculate bond order, magnetic behavior and order of stability of NO
  • b
    Write a note on liquid crystal describing classifications and applications of liquid crystals
  • a
    T h e e . m . f . o f t h e c e l l c d | c d c l2, 2.5 H 2O (Saturated) || AgCl (s) | Ag involving following reaction Cd(s)+2AgCl (s)aqcdcl2 2.5H2O(Saturated)+2Ag(s) is 0.6753V and 0.6915V at 250C and O0C. Calculate  H, G and S at 250C
  • b
    Draw the Phase diagram of wate r and explain triple point and metastable state
  • a
    Write Notes on chromophores a nd Auxochrome. Explain Transiti ons in UV spectra
  • b
    Explain the Microwave (Rotati onal) spectra of diatomic molec ule and write their applications
  • a
    Draw diagram of Bomb calorimeter. Explain proximate analysis of coal. 10 4
  • b
    Explain Ion exchange process of water softening. Zeolite sof tener was 90% exhausted, when 10,000 hard water was passed through it. Th e softener required 200 L of NaCL solution of strengths 50 gm/L. Calculates the hardners of water
  • a
    Explain with equations preparations of acid, ketone, alcohol , alkanes and Organometallic compound from Grignard reagent
  • b
    What are composite materials? Give the classifications of co mposite materials?

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.

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