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InsemOct 20242019 patternFE

Engineering Chemistry SPPU Insem Question Paper Oct 2024

All 4 questions from this SPPU insem paper, as printed. Read them here or open the PDF.

Open the PDFMost repeated Engineering Chemistry questions
Subject code
107009
Pattern
2019 pattern
Exam
Insem
Session
Oct 2024
Max. marks
30
Time
1 Hour
Semester
I
Paper code
[6358]-103

Printed for: F.E. (Insem)

Instructions to the candidates

  1. Answer Q.1 or Q.2, Q.3 or Q.4.
  2. Neat diagrams must be drawn wherever necessary.
  3. Figures to the right indicate full marks.
  4. Use of logarithmic tables slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed.
  5. Assume suitable data, if necessary.

Questions

  1. Q1

    1. a)

      Explain zeolite process of softening of water, with figure, process and reactions.

      [5]
    2. b)

      What is priming and foaming? Give causes, disadvantages and prevention of priming and foaming.

      [4]
    3. c)

      What are different types of impurities in water. Explain any two in detail.

      [3]
    4. d)

      100 ml of alkaline water sample requires 5.8 ml of 0.02 m HCl upto phenolphthalin end point and 14.2 ml upto methyl orange end point. Find the types and amount of alkalinities in water sample.

      [3]

  2. Q2

    1. a)

      Give the causes, disadvantages and preventions of scale formation in boilers.

      Also asked:Apr 2025 ·Apr 2025

      [5]
    2. b)

      Define Desalination of water. Explain reverse osmosis process for desalination of water with neat labelled diagram.

      Also asked:Oct 2025

      [4]
    3. c)

      Give any two exchanging reactions and regenration reactions of ion exchange/Deminerlisation process.

      [3]
    4. d)

      50 ml of water sample requires 15 ml of 0.02 m EDTA during titration. Whereas 50 ml of boiled water sample requires 11 ml of same EDTA in the titration. Calculate total, temporary and permanent hardness of water sample. 2

      Also asked:Oct 2025 ·Oct 2023

      [3]

  3. Q3

    1. a)

      Explain pH metric titration of strong acid against strong base, with procedure, titration curve and calculations.

      Also asked:Nov 2025 ·Apr 2025 ·Apr 2025 ·Nov 2024 ·Mar 2024

      [5]
    2. b)

      What are ion selective electrodes? Give composition and working of enzyme based membrane electrode for determination of urea.

      Also asked:Oct 2025

      [4]
    3. c)

      Explain the conductometric titration with reaction and titration curve before and after equivalence point of strong acid-strong base.

      [3]
    4. d)

      What is Buffer solution? Explain the types with example.

      Also asked:Oct 2025 ·Oct 2023

      [3]

  4. Q4

    1. a)

      Explain construction, working of conductivity cell used in the conductometric titrations with suitable diagram.

      [5]
    2. b)

      What is the reference electrode? Draw neat labelled diagram of Calomel electrode and give its cell representation with two demerits.

      [4]
    3. c)

      Define following terms i) Specific conductance ii) Equivalent conductance iii) Cell constant

      Also asked:Nov 2025 ·Oct 2025 ·Apr 2025 ·Apr 2025 ·Nov 2024 ·Oct 2023

      [3]
    4. d)

      Explain the conductometric titration of weak acid Vs. Weak base with two stages and titration curve.   

      [3]