Exam Details
| Subject | organic chemistry – ii | |
| Paper | ||
| Exam / Course | b. pharmacy | |
| Department | ||
| Organization | solapur university | |
| Position | ||
| Exam Date | October, 2018 | |
| City, State | andhra pradesh, solapur |
Question Paper
B.Pharm. (Semester III) (Old-CBCS) Examination, 2018
Organic chemistry II
Day and Date Wednesday, 26-12-2018 Max. Marks 70
Time 2.30 p.m. to 5.30 p.m. .00 .m. to .00 p.m.
I. Choose the most appropriate one from the following answers (1×15=15)
Nucleophilicacyl substitution of -OR is easily possible by
-NH2 -SH -Cl
Identify the six membered heterocycle with two hetero atoms from the list
below.
Indole Pyrrole Pyrazole Diazine
Product obtained on heating phthalic acid to its melting point is
Maleimide Phthalimide
Phthalic anhydride None
reaction that requires non α-hydrogen containing carbonyl
compound.
Mannich Reformatsky Perkin Cannizzaro
Identify a compound which is non-aromatic, from the following
Cyclo heptatrienyl cation Cyclobuta diene
Cyclohepta triene Cyclohexatriene
Oxidation of naphthalene with Vanadium pentoxide yields
Phthalicacid Benzoquinone
Naphthoquinone None
Phenanthrene on nitration yields derivative.
1-nitro 2-nitro 3-nitro 1,2,3-trinitro
Most suited method for separation of amines in the lab is
Hinsberg Distillation Hoffmanns Solvent extraction
Set P
Set P
SLR-TV 21 *SLRTV21*
Oxidizing agent used for obtaining aldehydes from alcohol is
HCrO4 CrO3
KMnO4 Pyridinium Chloro Chromate
10) Choose the correct reagent for completing the following reaction
Pyrrole 2-Nitro pyrrole
HNO3 HNO3:H2SO4
CH3COONO2 NaNO2
11) In order to get p-chloro derivative of Aniline selectively, the reaction/s to be
used
Halogenation, Alkylation Acylation, Halogenation
Halogenation, Acylation Alkylation, Halogenation
12) The reaction that uses chloroform, NaOH with phenols to yield
Salicylaldehyde
Fischer Hoffmanns
Reimer-Tiemann Gomberg
13) p-nitrophenols have higher solubility and lower b.p. compared to o-nitrophenols
because H-bonding.
Intramolecular Intermolecular
No None
14) p-sulphonate derivative of phenols is formed at
100°C 25°C 0°C -15°C
15) Nulceophilic aromatic substitution occurs in benzene by
mechanisms.
Unimolecular Bimolecular
-yne substitution All
II. Answer any five questions from the following
Write four methods for preparing aldehydes and ketones.
Outline Hoffmann's method for separating amines.
Write three characteristic reactions for anthracene and phenanthrene.
Set P
*SLRTV21* SLR-TV- 21
What is nucleophilic addition reaction Explain Cannizzaro reaction in brief.
Explain briefly
Role of substituents of chemical behaviour of benzene
ii) Reaction of amines with HONO.
What happens when phenol is reacted with an alkali, an acyl halide and
sodium dichromate, an alkyl halide in alkali
III. Answer any three questions from the following (10×3=30)
Write the definition, mechanism, conditions of reaction, scope and
applications of
Oppennauer oxidation
Reformatsky reaction.
Write two methods of preparation and two chemical reactions of pyridine
and indole.
Describe the characteristic reactions of benzene with examples. (2.5×4)
Write in brief
Structure elucidation of Naphthalene
Nucleophilic acyl substitution.
Organic chemistry II
Day and Date Wednesday, 26-12-2018 Max. Marks 70
Time 2.30 p.m. to 5.30 p.m. .00 .m. to .00 p.m.
I. Choose the most appropriate one from the following answers (1×15=15)
Nucleophilicacyl substitution of -OR is easily possible by
-NH2 -SH -Cl
Identify the six membered heterocycle with two hetero atoms from the list
below.
Indole Pyrrole Pyrazole Diazine
Product obtained on heating phthalic acid to its melting point is
Maleimide Phthalimide
Phthalic anhydride None
reaction that requires non α-hydrogen containing carbonyl
compound.
Mannich Reformatsky Perkin Cannizzaro
Identify a compound which is non-aromatic, from the following
Cyclo heptatrienyl cation Cyclobuta diene
Cyclohepta triene Cyclohexatriene
Oxidation of naphthalene with Vanadium pentoxide yields
Phthalicacid Benzoquinone
Naphthoquinone None
Phenanthrene on nitration yields derivative.
1-nitro 2-nitro 3-nitro 1,2,3-trinitro
Most suited method for separation of amines in the lab is
Hinsberg Distillation Hoffmanns Solvent extraction
Set P
Set P
SLR-TV 21 *SLRTV21*
Oxidizing agent used for obtaining aldehydes from alcohol is
HCrO4 CrO3
KMnO4 Pyridinium Chloro Chromate
10) Choose the correct reagent for completing the following reaction
Pyrrole 2-Nitro pyrrole
HNO3 HNO3:H2SO4
CH3COONO2 NaNO2
11) In order to get p-chloro derivative of Aniline selectively, the reaction/s to be
used
Halogenation, Alkylation Acylation, Halogenation
Halogenation, Acylation Alkylation, Halogenation
12) The reaction that uses chloroform, NaOH with phenols to yield
Salicylaldehyde
Fischer Hoffmanns
Reimer-Tiemann Gomberg
13) p-nitrophenols have higher solubility and lower b.p. compared to o-nitrophenols
because H-bonding.
Intramolecular Intermolecular
No None
14) p-sulphonate derivative of phenols is formed at
100°C 25°C 0°C -15°C
15) Nulceophilic aromatic substitution occurs in benzene by
mechanisms.
Unimolecular Bimolecular
-yne substitution All
II. Answer any five questions from the following
Write four methods for preparing aldehydes and ketones.
Outline Hoffmann's method for separating amines.
Write three characteristic reactions for anthracene and phenanthrene.
Set P
*SLRTV21* SLR-TV- 21
What is nucleophilic addition reaction Explain Cannizzaro reaction in brief.
Explain briefly
Role of substituents of chemical behaviour of benzene
ii) Reaction of amines with HONO.
What happens when phenol is reacted with an alkali, an acyl halide and
sodium dichromate, an alkyl halide in alkali
III. Answer any three questions from the following (10×3=30)
Write the definition, mechanism, conditions of reaction, scope and
applications of
Oppennauer oxidation
Reformatsky reaction.
Write two methods of preparation and two chemical reactions of pyridine
and indole.
Describe the characteristic reactions of benzene with examples. (2.5×4)
Write in brief
Structure elucidation of Naphthalene
Nucleophilic acyl substitution.
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- anatomy, physiology and health education – i
- anatomy, physiology and health education – ii
- biochemistry
- biochemistry – i
- biochemistry – ii
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- human anatomy and physiology – ii
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- medicinal chemistry – ii
- medicinal chemistry – iv
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- organic chemistry – i
- organic chemistry – ii
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- pharmaceutical analysis – iv
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- pharmaceutical busines management
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- pharmaceutics – i (new cbcs)
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