Download SGBAU BSc 2019 Summer 3rd Sem Industrial Chemistry Unit Process n Process Equipments Question Paper

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B.Sc. (Part—I1) Semester—II1 Examination

3S : INDUSTRIAL CHEMISTRY (R/V)
(Unit Processes and Process Equipments)

Time : Three Hours] [Maximum Marks : 80

Note :

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1. Question No. 1 is compulsory and carries 8 marks.
2. Remaining all SIX questions carry 12 marks each.
3. Give chemical equations and draw diagram wherever necessary.
4. Use of calculator is allowed.

1. (A) Fill in the blanks :— 2
   1. In hydrogenation of vegetable oil, glycerides of unsaturated fatty acid are converted into glycerides of _~ acid.

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   2. The mixed acid used in nitration is composed of HNO3 and __________.
   3. Mcleod gauge is generally used in the measurement of high __________.
   4. Composting is the aerobic and __________ decomposition of organic matter present in the refuse by microorganisms.
2. (B) Choose the correct alternative :— 2
   1. Halogenation reactions involve the use of :
      

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      (a) Chlorine (b) Bromine (c) lodine (d) All of these
   2. Which of the following is not an oxidising agent ?
      (a) KMnO4 (b) K2Cr2O7 (c) HCI (d) HNO3
   3. Evolution of hydrogen type corrosion occurs in this environment :
      (a) Acidic (b) Basic (c) Neutral (d) All of these

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   4. Which of the following is a vigorous hydrogenation catalyst ?
      (a) Copper (b) Nickel (c) Palladium (d) Platinum
3. (C) Answer in ONE sentence - — 4
   1. What is sulphonation ?
   2. Why the hardening of vegetable oil is carried out ?

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   3. Give the sources of radioactive waste.
   4. Define passivity.

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UNIT—I

1. (A) What is alkylation ? Discuss any three alkylating agents. 4
   (B) Explain the manufacture of m-nitroaniline. 4
   

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   (C) Give an account of continuous nitration. 4
   OR
2. (P) Discuss the manufacture of p-nitroacetanilide from acetanilide. 8
   (Q) Describe cathodic reduction method of amination. 4
   (R) Explain the vapour phase mechanism of alkylation. 4

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UNIT—I1

1. (A) Give an account of sulphonation of benzene. 4
   (B) What is bromination ? Explain any three types of brominating agent. 4
   (C) Discuss the thermodynamics of hydrolysis. 4
   OR

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2. (P) Explain any four factors affecting sulfonation. 4
   (Q) Give an account of various hydrolysing agents. 4
   (R) Discuss the manufacture of chlorobenzene. 4

UNIT—I11

1. (A) Explain the manufacture of benzoic acid 4
   

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   (B) Discuss the manufacture of methanol from carbon monoxide and hydrogen. 4
   (C) What is esterification ? Explain the esterification of organic acid with olefin. 4
   OR
2. (P) Give an account of vigorous and mild hydrogenation catalysts. 4
   (Q) Discuss the manufacture of vinyl acetate. 4
   

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   (R) What is oxidation ? Explain any three types of oxidative reactions. 4

UNIT—1V

1. (A) Draw and explain glass thermometer. 4
   (B) Discuss float type liquid level gauge. 4
   (C) Draw and explain manometer 4
   

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   OR
2. (P) Describe radiation pyrometer with diagram. 4
   (Q) Give an account of Pirani gauge used in the measurement of pressure. 4
   (R) Explain bell type liquid level gauge 4

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1. (A) Give the mechanism of corrosion by hydrogen evolution. 4
   (B) Describe underground corrosion. 4
   

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   (C) Draw and explain manufacturing process of oil paints. 4
   OR
2. (P) Define corrosion. Discuss galvanic corrosion. 4
   (Q) Discuss the factors affecting corrosion. 4
   (R) Describe chemical and physical passivity. 4

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UNIT—VI1

1. (A) Define solid waste. Explain the types of solid waste with suitable examples. 4
   (B) Explain composting as a solid waste treatment. 4
   (C) Discuss biomedical waste. 4
   OR

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2. (P) Explain the method of industrial solid waste treatment and disposal by incineration. 4
   (Q) Describe the types of hazardous solid waste. 4
   (R) Give an account of recycling and reuse of solid waste. 4

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