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Graduate Pharmacy Aptitude Test
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Organic Chemistry
List of top Organic Chemistry Questions asked in Graduate Pharmacy Aptitude Test
The hydrogen deficiency index for a compound with molecular formula
\(C_{13}H_9N_2O_4BrS\)
is
GPAT - 2021
GPAT
Organic Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Formaldehyde undergoes Grignard reaction to give
GPAT - 2021
GPAT
Organic Chemistry
Different classes of compounds
One of the following functional group makes benzoic acid weaker
GPAT - 2021
GPAT
Organic Chemistry
Protection & deprotection of groups
The heterocyclic nucleus present in nitrofurantoin are:
GPAT - 2020
GPAT
Organic Chemistry
Heterocyclic Chemistry
The Crystal form of Sulphacetamide is
GPAT - 2020
GPAT
Organic Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Antifungal agent 5-fluorocytosine is converted to its active metabolite 5-fluorouracil by one of the following fungal enzyme :
GPAT - 2020
GPAT
Organic Chemistry
Organic Chemistry- Some Basic Principles and Techniques
An aldopentose can be converted into aldohexose by:
GPAT - 2020
GPAT
Organic Chemistry
Organic Chemistry- Some Basic Principles and Techniques
The weakly acidic nature of warfarin is attributed to the presence of:
GPAT - 2020
GPAT
Organic Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Which of the following is Anti aromatic?
GPAT - 2020
GPAT
Organic Chemistry
Aromaticity & chemistry of aromatic compounds
Walden inversion or complete reversal of stereochemistry occurs in one of the following substitution reaction
GPAT - 2020
GPAT
Organic Chemistry
Stereochemistry
What is the product of the following reaction?
GPAT - 2020
GPAT
Organic Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Product of the following reaction:
GPAT - 2020
GPAT
Organic Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Following amino acid does not exhibit optical isomerism:
GPAT - 2020
GPAT
Organic Chemistry
Stereochemistry
Electron releasing groups stabilizes free radicals by:
GPAT - 2020
GPAT
Organic Chemistry
Pericyclic reactions
This 4-amino quinoline antimalarial drug marketed as R, S isomer, has two trifluromethyl moieties at position 2' and 8' and no electronegative substituent either at 6' or 7' positions is:
GPAT - 2020
GPAT
Organic Chemistry
Heterocyclic Chemistry
The specific reagents used in skraup synthesis of quinoline are:
GPAT - 2020
GPAT
Organic Chemistry
Heterocyclic Chemistry
The polymorphs exhibit the following different properties Except:
GPAT - 2020
GPAT
Organic Chemistry
carbonyl compounds
Which of the following rearrangement involves migration of a group from carbon to electron deficient nitrogen?
GPAT - 2020
GPAT
Organic Chemistry
carbonyl compounds
The condensation of an active methylene compound with formaldehyde and an amine to form B-amino carbonyl compound is known as:
GPAT - 2020
GPAT
Organic Chemistry
carbonyl compounds
Which of the following is the example of "Invert Sugar"?
GPAT - 2020
GPAT
Organic Chemistry
Carbohydrates
If two monosaccharides differ in their structure around a single carbon atom, they are called as
GPAT - 2020
GPAT
Organic Chemistry
Aromaticity & chemistry of aromatic compounds
The Nitration of quinoline gives a mixture of ___
GPAT - 2020
GPAT
Organic Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Which of the following groups stabilizes carbocation in electrophilic aromatic substition?
GPAT - 2020
GPAT
Organic Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Propanone and 2-hydroxy propene are;
GPAT - 2020
GPAT
Organic Chemistry
Organic Chemistry- Some Basic Principles and Techniques
One of the following statement with respect to carbachol is NOT correct Identify :
GPAT - 2020
GPAT
Organic Chemistry
Organic Chemistry- Some Basic Principles and Techniques
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