MOST IMPORTANT QUESTIONS Pharmaceutical organic chemistry-II (B.pharm 3rd semester) Here are a Selective questions of previous years questions papers collected by the different sources. this question papers are very helpful to all B. pharm 3rd Sem students.
Question -02 marks
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Define aromaticity.
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Why phenol is acidic?
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Why p-nitroaniline is less basic than aniline?
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Write the definition of RM value.
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Discuss the difference between drying and nondrying oil with example.
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What do you understand by angle strain?
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Write the different conformations of ethane.
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Illustrate the principle of saponification value.
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Predict the structure and medicinal uses of DDT and Naphthalene.
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What is banana bonding.
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Give structure and uses of DDT.
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What are phenols? Give physical properties of it.
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Define Iodine number (Iodine value).
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Define acetyl value. Give its signification.
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What are the uses of triphenylmethane?
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Define cycloalkanes.
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Give molecular orbital picture of benzene.
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Why phenol is acidic in nature?
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What is Friedal craft acylation? Explain with suitable reaction.
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Give structure and uses of Naphthols.
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Explain acid value.
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Give Hawarth synthesis of phenanthrene.
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Give stability order of cycloalkanes.
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Draw any four aromatic structures.
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Give structure and uses of diphenylmethane.
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Question -10 marks
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Give structure, preparation and properties of phenol.
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Explain aromatic electrophilic substitution reactions in Benzene with respect to halogenation with mechanism.
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Give structures, synthesis, reactions and uses of Anthracene derivatives.
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Explain Baeyer strain theory of stability of Cycloalkanes and give its limitations.
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Give analytical, synthetic and other evidences in derivation of structure of benzene.
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Write a note on theory of strainless ring.
Question -07 marks
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Explain effect of substituents on reactivity and orientation of mono substituted benzene compounds towards electrophilic substitution reaction.
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Write about analytical, synthetic, and other evidence in the derivation of structure of benzene.
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Give Huckel’s theory with suitable examples.
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Why phenols are acidic in nature?
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Explain Sache-Mohr theory of stability of cycloalkanes. Give reactions of cyclopropane and cyclobutane.
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Give effect of substituent on orientation of monosubstituted benzene compounds towards electrophilic substitution reaction.
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Explain saponification and iodine number.
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Give reactions of fat and oils.
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Give Baeyer’s strain theory and its limitation.
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Give structure, preparation and properties of naphthalene
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Illustrate in detail about Baeyer’s Strain theory with its limitations.
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What do you mean by fats, oils, and waxes? Discuss the chemical reactions of fats, oils and waxes
