ABC26OR0742 · Amongst the following amino acids, the (R)-enantiomer is represented by · 2000-2022
ABC26OR0906 · After the following interchanging of groups in the Fischer projection of 2-bromobutane, the configuration of (X) and (Y) will be · 2005-2022
ABC26OR0743 · The configurations at the three chiral centres in the bicyclodecanol given below, are · 2000-2022
ABC26OR0907 · The number of enantiomers of camphor · 2005-2022
ABC26OR0744 · The absolute configurations of the two chiral centers in the following molecule are · 2000-2022
ABC26OR0908 · (1) (2) The given compounds 1 and 2 are · 2005-2022
ABC26OR0745 · Among the following, the Newmann projections of meso-2, 3-butanediol are · 2000-2022
ABC26OR0909 · Which one of the following compounds is optically active? (1) (2) (3) (4) · 2005-2022
ABC26OR0746 · The configurations at the two asymmetric centres ( C-1 and C-6 ) in the bicyclo [4.4.0] decane, given below are · 2000-2022
ABC26OR0910 · Among the following, the correct statement concerning the optical activity is: · 2005-2022
ABC26OR0747 · Esterification of the acid P with the alcohol Q will give (S)-P ( )-Q · 2000-2022
ABC26OR0911 · The maximum number of stereoisomers possible for 4-phenylbut-3-en-2-ol is · 2005-2022
ABC26OR0748 · Among the following, the most stable isomer for 3 - methoxycyclohexanol is: · 2000-2022
ABC26OR0912 · Which of the following is achiral? · 2005-2022
ABC26OR0749 · The decreasing order of nucleophilicity for the following anions is CH3 CO2-, CH3 O-, C6 H4 O-, NO3- · 2000-2022
ABC26OR0750 · Among the following compounds, the one that is non-aromatic, is · 2000-2022
ABC26OR0913 · Benzene and Dewar benzene are · 2005-2022
ABC26OR0751 · The binaphthol (Bnp) is: · 2000-2022
ABC26OR0914 · The most stable conformation of the molecule shown below is correctly represented by · 2005-2022
ABC26OR0752 · Bridge-head hydrogen of the conformer of cis-decalin is positioned as · 2000-2022
ABC26OR0753 · The major stereoisomer obtained in the reaction of (S)-2- phenylpropanal with MeMgBr is: · 2000-2022
ABC26OR0916 · The Cahn-Ingold-Prelog (CIP) priorities of the group and the absolute configuration (R/S) of the following compounds are · 2005-2022
ABC26OR0754 · The most stable conformation of the following compound is: · 2000-2022
ABC26OR0917 · The correct sequence of relationship between the compounds of the following pairs i-iv is (i) (ii) (iii) (iv) · 2005-2022
ABC26OR0755 · Identify the correct stereochemical relationship amongst the hydrogen atoms Ha, Hb and Hc in the following molecule: · 2000-2022
ABC26OR0918 · The optically active stereoisomer of the following compound is · 2005-2022
ABC26OR0756 · Stereochemical descriptors for the atoms labeled Ha and Hb in the structure. (X) (Y) (Z) respectively are: · 2000-2022
ABC26OR0919 · The pair of conformation that has maximum energy difference is: · 2005-2022
ABC26OR0920 · Specific rotations of freshly prepared aqueous solutions of I and II are +112 and +18.7, respectively. On standing the optical rotation of… · 2005-2022
ABC26OR0757 · Match the entries a-d with their corresponding structures P-S · 2000-2022
ABC26OR0921 · Which one among the following molecules is chiral? · 2005-2022
ABC26OR0758 · For the compound the stereochemical notations are · 2000-2022
ABC26OR0922 · The structure of (2S, 3R)-2-amino-3-hydroxy butanoic acid is · 2005-2022self-practice
ABC26OR0759 · The absolute configurations for compounds X and Y , respectively are X Y · 2000-2022
ABC26OR0760 · The maximum number of stereoisomers possible for the compound given below is · 2000-2022
ABC26OR0923 · Among the following, the most stable conformation of meso-2,3-dibromobutane is · 2005-2022
ABC26OR0761 · The absolute of C2 and C3 in the following compound is · 2000-2022
ABC26OR0924 · The number of all possible isomers for the molecular formula C6 H14 is ____ . · 2005-2022
ABC26OR0762 · The number of possible stereoisomers obtained in the following reaction is ____ · 2000-2022
ABC26OR0925 · Among the following, the number of molecules that possess C2 axis of symmetry is ____ . BF3 CHCl3 2,5-dimethylthiophene · 2005-2022
ABC26OR0763 · The compound in 'R' configuration is · 2000-2022
ABC26OR0926 · Catalytic hydrogenation of the following compound produces saturated hydrocarbon(s). The number of stereoisomer(s) formed is · 2005-2022
ABC26OR0764 · Ring flipping of the compound in the following conformation leads to · 2000-2022
ABC26OR0927 · The total number of pair of enantiomers possible with molecular formula C5 H12 O is · 2005-2022
ABC26OR0765 · The enantiomeric pair, among the following is · 2000-2022self-practice
ABC26OR0928 · The compounds having C3-axis of symmetry are I II III IV · 2005-2022self-practice
ABC26OR0766 · The specific rotation of optically pure (R)-2-bromobutane is -112.00. A given sample of 2-bromobutne exhibited a specific rotation of… · 2000-2022
ABC26OR0929 · The number of compounds having S-configuration among the following is ____ . · 2005-2022
ABC26OR0767 · Among the following compounds, the number of compounds that DO NOT exhibit optical activity at room temperature is ____ . · 2000-2022