Stereochemistry

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 (Y) · 2005-2022

ABC26OR0743 · The configurations at the three chiral centres in the bicyclodecanol given below, are · 2000-2022

ABC26OR0744 · The absolute configurations of the two chiral centers in the following molecule 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

ABC26OR0912 · Which of the following is achiral? · 2005-2022

ABC26OR0749 · The decreasing order of nucleophilicity for the following anions is CH3CO2-, CH3O-, C6H4O-, 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

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

ABC26OR0754 · The most stable conformation of the following compound is: · 2000-2022

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

ABC26OR0757 · Match the entries a – d with their corresponding structures P – S (A) bridged system (B) atropisometric system (C) spiro system (D) Fused… · 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 · 2005-2022 self-practice

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 C6H14 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

ABC26OR0926 · Catalytic hydrogenation of the following compound produces saturated hydrocarbon(s). The number of stereoisomer(s) formed is · 2005-2022

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

ABC26OR0930 · Among the dimethylcyclohexanes, which one can be obtained in enantiopure form? · 2005-2022

ABC26OR0768 · Absolute stereochemistry of the given compound is: · 2000-2022

ABC26OR0931 · The number of stereoisomers possible for the following compound is ____. · 2005-2022

ABC26OR0770 · Among the following eight compounds, (H3 C)2 C=C=CHBr The number of compound(s) which can exhibit stereoisomerism is ____. 2 GOC GATE 2000 · 2000-2022

ABC26OR0933 · The number of gauche-butane interaction(s) in the following compound is ____. · 2005-2022

ABC26OR0934 · (R)-2-methyl-1-butanol has a specific rotation of +13.5°. The specific rotation of 2-methyl-1-butanol containing 40% of the (S)-enantiomer… · 2005-2022 self-practice

ABC26OR0936 · The dihedral (torsional) angle (in degrees) between the two methyl groups in the most stable conformation of n-butane is ____ (Round off to… · 2005-2022

ABC26OR0938 · Total number of constitutional isomers possible for trimethyl cyclohexane is ____. · 2005-2022

ABC26OR0939 · For the molecule, CH3-CH=CH-CH(OH)-CH=CH-CH=C(CH3)2 the number of all possible stereoisomers is ________. · 2005-2022

ABC26OR1090 · In the following compound, the stereochemical descriptor for Ha and Hb is · JUNE 2016