Download SGBAU B-Tech 3rd Sem Applied Organic Chemistry Question Paper

Pages: 2

Time : Three Hours

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11001 : Applied Organic Chemistry : 3 CT 01

Notes:

1. Answer three questions from Section A and three questions from Section B.
2. Diagrams and chemical equations should be given wherever necessary.
3. Illustrate your answer with the help of neat sketches.

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4. Discuss the reaction, mechanism wherever necessary.
5. Use of pen Blue/Black ink/refill only for writing the answer book.

SECTION - A

1. 1. What are heterocyclic compounds ? Write the classification of heterocyclic compounds with suitable example ?
   2. Explain the basic character of pyrrole ?

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   3. Explain the following reactions of pyrrole ?
      1. Nitration
      2. Acylation
      3. Bromination
      4. Di-azocoupling

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   OR

2. 1. Explain the following reactions of naphthalene ?
      1. Reduction
      2. Sulphonation
      3. Gattermann's reaction

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      4. Halogenation
   2. Why pyridine resembles benzene in many of its properties & exhibits aromatic character ?
   3. Give the applications of quinoline.

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3. 1. What are alcohols ? Explain the classification of alcohols with suitable example.
   2. Discuss the applications of Lauryl alcohol ?
   3. How will you obtain the followings ?
      1. Phenol from Benzene
      2. Aniline from phenol
      3. Benzoquinone from phenol.

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   OR

4. 1. How will you prepare the following ?
      1. Catechol
      2. Cetyl alcohol

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   2. Discuss the applications of resorcinol ?
   3. Explain the following reactions of benzene ?
      1. Thallation
      2. Nitrosation
      3. Diazocoupling

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5. 1. How is ethyl malonate prepared ? Discuss its acidic character ?
   2. Give the applications of Aceto acetic acid ?
   3. Explain the following reactions:
      1. Coupling with diazonium salt

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      2. Carbylamine reaction
      3. Oxidation

   OR

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6. 1. What are amines ? Explain the classification of amines with suitable example ?
   2. How will you obtain the following from malonic acid ?
      1. Chloroacetic acid
      2. Malic acid
   3. Discuss the chemical properties of
      1. Aniline

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      2. Benzene diazonium chloride

SECTION - B

1. 1. What is Nitration ? Explain the mechanism of aromatic nitration ?

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   2. Discuss the technical preparation of nitro benzene ?
   3. Write the name of various nitrating agents with chemical formula.

   OR

2. 1. What is sulphonation ? Explain its mechanism ?

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   2. Explain the construction and working of Batch sulphonation kettle ?
   3. Describe the technical preparation of sulphonation of benzene ?
3. 1. What is halogenation ? Explain its kinetics ?
   2. Discuss the technical preparation of DDT ?

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   3. Explain the technical preparation of vinyl chloride ?

   OR

4. 1. What is halogenation ? List the various halogenating agents with chemical formula ?
   2. Discuss the technical preparation of Bakelite ?

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   3. What are polymers ? Give the classification of polymers on the basis of structure ?
5. 1. What are preservatives ? Explain the applications of preservatives ?
   2. Give the classification of carbohydrates with suitable example.
   3. Write the industrial applications of -
      1. Starch

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      2. Glucose

   OR

6. 1. What are antioxidants ? Explain the applications of anti-oxidants.

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   2. Give the classification of terpenes with suitable examples.
   3. Discuss the chemistry of following ?
      1. Sucrose
      2. Sweetening agents

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