List of top Organic Chemistry Questions asked in Indian Institute Of Technology Joint Admission Test for MSc

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)

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 _______.

The specific rotation of an optically pure compound is +75.3 (c 1.0 in CHCl₃) at 20 °C. A synthetic sample of the same compound showed a specific rotation of +66.3 (c 1.0 in CHCl₃) at 20 °C. The enantiomeric excess (ee) of the synthetic sample is _______ %.
(rounded off to the nearest integer)

The major products X and Y in the following reactions

respectively, are

The major product formed in the following reaction

is

In the following reaction

optically pure ester X formed product that did not exhibit optical rotation ([α]D=0) due to the formation of 
(Note: Ts=para-toluenesulfonyl; Ac=acetyl)

The major product formed in the following reaction Me Me ONO Me

is

Among the following, the chiral molecule(s) is/are

The pair of proteins having heme core is

The suitable synthetic route(s) for the following transformation

is/are

Among the following, the compound(s) which produce the same osazone as that obtained from D-glucose, when reacted with phenylhydrazine, is/are

The suitable reagent combination for the following transformation

is

The following dipeptide derivative is used as an artificial sweetener:

The constituent α-amino acids of this dipeptide are

The compound(s) which on reaction with CH₃MgBr followed by treatment with aqueous NH₄Cl would produce 1-methyl-1-phenylethanol as the major product is/are

The major product formed in the following reaction

is.

The acidity of the compounds shown below

follows the order

The molecular weight of the major product of the reaction is (in integer).

[Given: atomic weight of H=1, C=12, N=14, and Br=80]

The major product of the reaction is

The major product Y in the following reaction scheme is

The major product of the reaction is

The major product in the following reaction is

The major product of the reaction is

The most stable conformation of Y and that of Z are

An alkaline (NaOH) solution of a compound produces a yellow colored solution on addition of NaBO₃. The compound is

The rate of addition of 1-hexyl radical to the given molecules follows the order