Medicinal Chemistry PYQs – Set 52
Subject : Medicinal Chemistry
1021. The value of stretching frequency of a bond can be calculated by:
Medicinal Chemistry • • NIPER 2014
1022. Which of the following substituents acts as a moderate activator and ortho/para director?
Medicinal Chemistry • • NIPER 2014
1023. Which of the following is ODD from the chemistry point of view?
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1024. Synthesis of progesterone from diosgenin involves which of the following reactions?
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1025. Which of the following concepts explains Markovnikov’s rule as applied to the addition of HBr to propene?
Medicinal Chemistry • • NIPER 2014
1026. What is the best choice of reagent(s) to perform the following transformation?
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1027. Among the given compounds, which has the highest boiling point?
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1028. Which of the following substances does NOT function as a Lewis acid?
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1029. Oppenauer oxidation is the reverse process of which of the reduction processes?
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1030. Which of the following methods is used to convert ketone into hydrocarbon?
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1031. The conversion of acetophenone to acetanilide is best accomplished by using:
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1032. The major product formed in the reaction of quinoline with potassium amide (KNH₂) in liquid ammonia is:
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1033. Geometric isomers cannot be distinguished by:
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1034. Electron-withdrawing but ortho, para directing group is:
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1035. Identify the tetrahedral carbon from the following.
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1036. What are the absolute configurations of the chiral carbons in the given compound?
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1037. Which of the following is an isomer of lawsone?
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1038. Lewis acid is a catalyst for all of the reactions EXCEPT:
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1039. Reaction of alcoholic solution of curcumin with acetic acid and hydrazine hydrate under 60°C for 24 h gives:
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1040. Which of the following reaction does not produce pyrrole?
Medicinal Chemistry • • NIPER 2014
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