List of top Organic Chemistry Questions asked in Graduate Pharmacy Aptitude Test

Addition of HBr to 1.3-butadiene at 40°C yields:

Which of the following factor make carbonyl group in acyl compounds, too, susceptible to nucleophilic attack?

Identify A, B and C in below reaction:

A = Br₂, B = KOH, C = NaNH₂ Which heterocyclic ring is fused to a steroidal nucleus in Danazol?

The tendency of carbon to loose electrons even at the expense of gaining positive chargeIdentify intermediate forms in following substitution reaction:

Conversion of cyclic ketone to ring expended cyclic ester takes place by:

Which of the following surfactants is an ANIONIC surfactant?

Which of the following is the common chemical name for Propellant 11?

Electrophilic substitution reaction of pyridine, when carried out in the presence of KNO₃ and conc. H2SO₄ at 300°C, leads to the formation of:

Following groups exert any one of the effects on electrophilic aromatic substitution

Identify whether all three are:

A reagent may attach itself to a conjugated diene to the carbons at the two ends of the conjugated system. Identify the reaction involved from the following:

How many optical isomers are possible for lactic acid?

The perfect orientation for a Diels-Alder reaction between the reactants is:

Select the correct product A of the above-given reaction from the four choices given below:

Choose the correct and major product formed in the below-given reaction from the choices listed below:

Dipole-dipole weak interactions are also called as:

Ethyl-2 (p-chlorophenoxyl)-2-methyl propionate is IUPAC name of:

A mixture of p-anisaldehyde and formaldehyde in the presence of concentrated sodium hydroxide resultsin:

E2 elimination converts neomethyl chloride into a mixture of the following compounds:

Which one of the following compound is a precursor for the biosynthesis of cholesterol?

Which one among the following drugs has the IUPAC \(α.α.\overline{α}.\overline{α}\)-tetramethyl 5-(1 H-1, 2,4-triazole- 1-ylmethyl)-1,3-benzenediacetonitrile:

Optically active mandelic acid can be synthesized from benzaldehyde in the presence of the enzyme:

Given below are the two statements
Statement I: Glucose‐6‐phosphate can be formed from glucose, but not from glycogen.
Statement II: Glucose‐1‐phosphate may be hydrolyzed to yield free glucose in liver.
Choose the most appropriate answer from the options given below:

In the determination of configuration of glucose, Fischer subjected (‐) arabinose to Ruff’s degradation. The four‐carbon sugar obtained by the degradation process was:

Among the following organic compounds, the one that is non‐aromatic is: