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Organic Chemistry
List of top Organic Chemistry Questions
The reactivity of the enol derivatives
towards benzaldehyde follows the order
IIT JAM CY - 2022
IIT JAM CY
Organic Chemistry
Reaction Mechanisms & Synthesis
The reaction of 2,4-dinitrofluorobenzene with hydrazine produces a yellow orange solid X used for the identification of an organic functional group G. X and G, respectively, are
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IIT JAM CY
Organic Chemistry
Qualitative Organic Analysis
Among the following, the correct statement(s) is/are:
IIT JAM CY - 2022
IIT JAM CY
Organic Chemistry
Organic Chemistry
The compound(s) that participate(s) in Diels-Alder reaction with maleic anhydride is/are
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IIT JAM CY
Organic Chemistry
Reaction Mechanisms & Synthesis
Among the following, the suitable route(s) for the conversion of benzaldehyde to acetophenone is/are
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IIT JAM CY
Organic Chemistry
Reaction Mechanisms & Synthesis
Among of the following
the number of aromatic compounds is _______ .
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IIT JAM CY
Organic Chemistry
Heterocyclic Chemistry
The number of stereoisomers possible for the major product formed in the reaction
is ________.
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IIT JAM CY
Organic Chemistry
Stereochemistry
The reaction of 122 g of benzaldehyde with 108 g of phenylhydrazine gave 157 g of the product
The yield of the product is _________%. (round off to the nearest integer)
IIT JAM CY - 2022
IIT JAM CY
Organic Chemistry
Reaction Mechanisms & Synthesis
The specific rotation of optically pure (R)-1-phenylethylamine is +40 (neat, 20 °C). A synthetic sample of the same compound is shown to contain 4:1 mixture of (S)- and (R)-enantiomers. The specific rotation of the neat sample at 20 °C is ____________. (round off to the nearest integer)
IIT JAM CY - 2022
IIT JAM CY
Organic Chemistry
Stereochemistry
Formaldehyde undergoes Grignard reaction to give
GPAT - 2021
GPAT
Organic Chemistry
Different classes of compounds
This Compound 2,5,8,11,14,17,20,23,26-nona-oxaoctacosan-28-yl p-(butylamino) benzoate is usually known for its activity?
GPAT - 2021
GPAT
Organic Chemistry
Amino Acids
Match the types of terpenes under column I with their respective examples under Column II
Column I
Types of terpenes
Column II
Examples
A
Monoterpenes
I
Lycopene
B
Diterpenes
II
Camphor
C
Sesquiterpenes
III
Taxol
D
Tetraterpenes
IV
Zingiberene
Choose the correct answer from the options given below :
GPAT - 2021
GPAT
Organic Chemistry
Stereochemistry
For 1,3-butadiene, there are ____ molecular orbitals for п electrons
GPAT - 2021
GPAT
Organic Chemistry
Pericyclic reactions
Four-membered fully saturated heterocycle containing one oxygen is called
GPAT - 2021
GPAT
Organic Chemistry
Heterocyclic Chemistry
HEPA filters are defined as A or more efficient in removing, from the air, B particles generated by vaporization of the hydrocarbon Emory 3004.
GPAT - 2021
GPAT
Organic Chemistry
Polycyclic aromatic hydrocarbons
Glucose upon treatment with nitric acid yields
GPAT - 2021
GPAT
Organic Chemistry
Carbohydrates
One of the following functional group makes benzoic acid weaker
GPAT - 2021
GPAT
Organic Chemistry
Protection & deprotection of groups
The hydrogen deficiency index for a compound with molecular formula
\(C_{13}H_9N_2O_4BrS\)
is
GPAT - 2021
GPAT
Organic Chemistry
Organic Chemistry
Amine group protection during peptide synthesis can be accomplished by converting the amine to
GPAT - 2021
GPAT
Organic Chemistry
Amino Acids
The total number of possible stereoisomers for 3-bromo-2-butanol are
GPAT - 2021
GPAT
Organic Chemistry
Stereochemistry
Formaldehyde undergoes Grignard reaction to give
GPAT - 2021
GPAT
Organic Chemistry
Different classes of compounds
An epoxy ring can be prepared by
GPAT - 2021
GPAT
Organic Chemistry
Polycyclic aromatic hydrocarbons
The effect of activation or deactivation of an incoming functional group to an aromatic compound is strongest at
GPAT - 2021
GPAT
Organic Chemistry
Aromaticity & chemistry of aromatic compounds
All the following can determine the protein structure except
GPAT - 2021
GPAT
Organic Chemistry
Amino Acids
The dehydration of aldol product of two acetaldehyde molecules through Elcb mechanism affords formation of
GPAT - 2021
GPAT
Organic Chemistry
Different classes of compounds
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