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

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)

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)

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

The most stable conformation of Y and that of Z are

The sum of the total number of stereoisomers (including enantiomers) present in the following molecules is _____.

The number of stereoisomers possible for the major product formed in the reaction

is ________.

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)