Download OU B.Pharma 2-1 Year 2017 1066 Pharmaceutical Oranic Chemistry I Question Paper

Download OU (Osmania University) B.Pharma 2-1 (2nd Year 1st Sem) (Bachelor of Pharmacy) 2017 1066 Pharmaceutical Oranic Chemistry I Previous Question Paper

Code No. 1066
FACULTY
B. Pharmacy 2/4 I ? Semester (Supplementary) Examination, November 2017
Subject : Pharmaceutical Oranic Chemistry I
Time : 3 hrs Max. Marks : 70
Note: Answer all questions. All questions carry equal marks.
1 a) Explain the followin terms
1) Inductive effect 2) Mesomeric effect 3) Resonance
with suitable examples 2+3+3
b) How do y differentiate between enantiomers and diastereomers? Explain
with suitable examples. 6
OR
c) Discuss the followin with suitable examples.
1) Polarity 2) Solubility 3) Inter molecular forces 2+2+2
d) Explain SP
1
, SP
2
and SP
3
hybridization. 8
2 a) Discuss the importance of Bayer?s strain theory. 7
b) Write eneral methods of preparation of alkynes. 7
OR
c) Explain the reactions of alkenes. 7
d) Discuss the free radical mechanism for the chlorination of methane. 7
3 a) Explain E
1
and E
2
elimination reactions with mechanism. 5
b) ive any three methods to synthesize alkyl halides. 9
OR
c) Discuss the Williamson?s synthesis of ethers. 7
d) Explain Walden inversion and Ziesel?s method. 7
4 a) Write synthetic applications of Diethyl Malonate and Ethyl aceto acetate. 7
b) Discuss any three nucleoptillic addition reactions of carbonyl compnds with
mechanism. 7
OR
c) Write any three methods of preparation of aldehydes and ketones. 9
d) ive the reasons for followin statements
1) Bromo acetic acid is weaker than chloro acetic acid 2 1/2
2) Formic acid is stroner than acetic acid 2 1/2
5 a) How to separate mixtures of amines by different methods? 10
b) Write any two methods to prepare Nitro alkanes. 4
OR
c) ive the synthetic applications of aryl diazotium salts. 8
d) Write any three important reactions of amines. 6
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