Download PTU B.Sc (Non-Medical) 2020 March 1st Sem 75742 Organic Chemistry Question Paper

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Roll No. [ ] [T T T TT] Total No. of Pages : 02
Total No. of Questions : 09

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying ONE marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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1. Answer the following :
   1. What are homolytic bonds?
   2. What are electrophiles?
   3. What is optical activity?
   4. What is the axial bond?
   5. What is geometrical isomerism?

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   6. Differentiate between the conformation and configuration.
   7. Explain one application of ethylene.
   8. What are dienes?
   9. Explain the structure of carbocation.
   10. Explain the Saytzeff rule.

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SECTION-B

2. Explain the oxymercuration in alkanes.
3. Explain the Hoffman elimination.
4. Explain the Wurtz Reaction.

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5. Explain the sequence rules.
6. Explain The Newman Projection and Sawhorse Formulae.

SECTION-C

7. Explain the reactions and formation of carbocation and explain the reactivity order.
8. Explain the Bayer’s strain theory and its limitations.

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9. Explain the hydroboration oxidation in alkynes with mechanism.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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