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Organic Chemistry
List of top Organic Chemistry Questions
According to Oppenauer Oxidation reaction, oxidation of secondary alcohol to ketone by reagent (X) in acetone takes place, what is "X" :
GPAT - 2024
GPAT
Organic Chemistry
carbonyl compounds
The acidity of the compounds shown below
follows the order
IIT JAM CY - 2024
IIT JAM CY
Organic Chemistry
Heterocyclic Chemistry
Fischer presentation of D-(-)-fructose is given below.
The correct structure of α-L-(+)-fructofuranose is
GATE CY - 2024
GATE CY
Organic Chemistry
Relative stereochemistry in compounds having more than one stereogenic centre
Exhaustive hydrogenation of the following compound
under Pd/C generates a saturated hydrocarbon as the product.
The number of stereoisomers possible for this product is _______.
IIT JAM CY - 2024
IIT JAM CY
Organic Chemistry
Stereochemistry
Which of the following is an aryl acetic acid derivative:
GPAT - 2024
GPAT
Organic Chemistry
carbonyl compounds
Which of the following is a meta directing group?
GPAT - 2024
GPAT
Organic Chemistry
carbonyl compounds
The starting raw material for synthesis of lignocaine is:
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GPAT
Organic Chemistry
Amino Acids
Famotidine contains:
GPAT - 2024
GPAT
Organic Chemistry
Heterocyclic Chemistry
The IUPAC name of tartaric acid is:
GPAT - 2024
GPAT
Organic Chemistry
Heterocyclic Chemistry
How many optical isomers are possible for lactic acid:
GPAT - 2024
GPAT
Organic Chemistry
Stereochemistry
Which functional group in drug molecules is most likely to undergo phase I metabolic oxidation by cytochrome P450 enzymes:
GPAT - 2024
GPAT
Organic Chemistry
carbonyl compounds
Which of the following is an aryl acetic acid derivative:
GPAT - 2024
GPAT
Organic Chemistry
carbonyl compounds
As per Bronsted-Lowry concept, acid is defined as:
GPAT - 2024
GPAT
Organic Chemistry
Organic Chemistry - Some Basic Principles and Techniques
In which limit test is Thioglycolic acid used:
GPAT - 2024
GPAT
Organic Chemistry
Organic Chemistry - Some Basic Principles and Techniques
Which of the following is easily nitrated using a mixture of \(HNO_3\) and \(H_2SO_4\):
GPAT - 2024
GPAT
Organic Chemistry
Different aromatic classes of compounds
Which of the following is first prodrug for sulfonamide:
GPAT - 2024
GPAT
Organic Chemistry
Kinetic & thermodynamic control
The specific rotation of an optically pure compound is +75.3 (c 1.0 in CHCl
3
) at 20 °C. A synthetic sample of the same compound showed a specific rotation of +66.3 (c 1.0 in CHCl
3
) at 20 °C. The enantiomeric excess (ee) of the synthetic sample is _______ %.
(rounded off to the nearest integer)
IIT JAM CY - 2024
IIT JAM CY
Organic Chemistry
Stereochemistry
A reaction of 10.50 g of 1,2-diphenylethane-1,2-dione with conc. NaOH followed by aqueous acidic work-up furnished 8.55 g of a carboxylic acid. The yield of the carboxylic acid in this reaction is _______ %.
(rounded off to the nearest integer)
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IIT JAM CY
Organic Chemistry
Reaction Mechanisms & Synthesis
Among the following, the chiral molecule(s) is/are
IIT JAM CY - 2024
IIT JAM CY
Organic Chemistry
Stereochemistry
Among the following, the compound(s) which produce the same osazone as that obtained from D-glucose, when reacted with phenylhydrazine, is/are
IIT JAM CY - 2024
IIT JAM CY
Organic Chemistry
Reaction Mechanisms & Synthesis
The compound(s) which on reaction with CH
3
MgBr followed by treatment with aqueous NH
4
Cl would produce 1-methyl-1-phenylethanol as the major product is/are
IIT JAM CY - 2024
IIT JAM CY
Organic Chemistry
Reaction Mechanisms & Synthesis
The suitable synthetic route(s) for the following transformation
is/are
IIT JAM CY - 2024
IIT JAM CY
Organic Chemistry
Reaction Mechanisms & Synthesis
The major product formed in the following reaction
is
IIT JAM CY - 2024
IIT JAM CY
Organic Chemistry
Reaction Mechanisms & Synthesis
The major product formed in the following reaction
|
is
IIT JAM CY - 2024
IIT JAM CY
Organic Chemistry
Reaction Mechanisms & Synthesis
The major products X and Y in the following reactions
respectively, are
IIT JAM CY - 2024
IIT JAM CY
Organic Chemistry
Qualitative Organic Analysis
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