Download PTU I. K. Gujral Punjab Technical University (IKGPTU) B.Pharma (Bachelor of Pharmacy) 2020 December 3rd Sem 75105 Pharmaceutical Organic Chemistry Ii Previous Question Paper
Roll No.
Total No. of Pages : 03
Total No. of Questions : 22
B.Pharma (2017 & Onward) (Sem.?3)
PHARMACEUTICAL ORGANIC CHEMISTRY-II
Subject Code : BP-301T
M.Code : 75105
Time : 3 Hrs. Max. Marks : 75
INST RUCT IONS T O CAND IDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN question s carrying TWO marks
each.
2 .
SECT ION-B contains THREE questions carrying T EN marks each and s tudents
have to atte mpt any T WO questio ns.
3 .
SECT ION-C c ontains NINE questions ca rrying F IVE marks eac h and s tud ents
have to atte mpt any SEVEN que stions .
SECTION-A
Choose the correct option in the following objective type questions :
1.
As per Huckel rule aromatic compounds contains _____ pi-electrons
A. 4n+2,
B. 2n+4,
C. 4n-2,
D. 2n-4
2.
Benzene undergo electrophilic substitution rather than electrophilic addition because of
A. Resonance stabilization of reaction product
B. Stability of intermediate carbocations
C. Both A & B
D. None of these.
3.
Saccharine is _____
A. o-Benzenesulphonamide
C. p-toluene sulphonyl chloride
B. p-toluene sulphonamide
D. p-amino benzene suphonic acid
4.
Electron withdrawing substituent _____ acidity of phenol.
A. Increases
C. Does not effect on
B. Decreases
D. None of these
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5.
Electron withdrawing group _____ basicity of aniline.
A. Increases
C. Does not affect
B. Decreases
D. A&B both
6.
Hydrolysis of fats by NaOH leads to the formation of _____
A. Soap
B. Glycerol
C. A&B both
D. Detergent
7.
Decalin is fully saturated__________
A. Napthalene
B. Anthracene
C. Phenanthrene D. Benzene
8.
Ring opening reaction in cyclobutane occurs at higher temperature than that of the
cyclopropane because it is _____
A. More stable
B. Less stable
C. Less strained D. More strained
9.
_____ product predominates in electrophilic substitution in naphthalene
A.
B.
C.
D.
10. Bulky substituent on chair form of cyclohexane is always in________
A. Equatorial
C. Quasi axial
B. Axial
D. perpendicular to plane of ring
SECTION-B
11. Discuss the directive effect of substituent on electrophilic substitution in monosubstituted
benzene.
12. Describe important name reactions of phenol.
13. Describe principle and significance of various constants that are used for analysis of oils
and fats.
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SECTION-C
14. Explain aromatic characteristic of benzene on the basis of Huckel's rule.
15. Discuss effect of electron-withdrawing and electron releasing group on acidity of phenols.
16. Describe hydrolytic and oxidative rancidification of fats and oils.
17. Describe mechanism of Haworth synthesis of anthracene.
18. Explain Bayer's strain theory.
19. Explain why cyclopentane and cyclohexane are more stable than lower cycloalkane?
20. Discuss the synthesis of Azo compounds from diazonium salt.
21. Describe important preparations of anilines.
22. Explain mechanism of Friedal-craft acylation.
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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This post was last modified on 14 February 2021