ABC26OR0781 · calixene Calixene is a polar hydrocarbon with a high dipole moment. The most stable dipolar canonical structure is ____ · 2005-2022self-practice
ABC26OR0783 · The homolytic breaking of the Ca-Cb bond is easiest in: · 2005-2022
ABC26OR0019 · In the compound given below, the hydrogens marked A and B are · JUNE 2013
ABC26OR0020 · Among the following compounds, the one which has highest dipole moment is · JUNE 2013
ABC26OR0022 · Amongst the following, the compound which has the lowest energy barrier for the cis-trans isomerisation is: · DEC 2013
ABC26OR0024 · The two benzylic hydrogens HA and HB in the compounds I and II, are (I) (II) · DEC 2013
ABC26OR0028 · Consider the following statements about cis- and trans-decalins · DEC 2013
ABC26OR0035 · The correct order of heat of hydrogenation for the following compounds is (I) (II) (III) (IV) · JUNE 2015
ABC26OR0038 · In the following compound, the stereochemical descriptor for Ha and Hb is · JUNE 2015
ABC26OR0040 · The correct order of magnitude of 'A values' for the given substituents in cyclohexane derivatives is X = CH3, CN, Ph · JUNE 2015
ABC26OR0042 · The correct order of the bond dissociation energies for the indicated C-H bond in following compounds is A B C · DEC 2016
ABC26OR0045 · Methyl groups in the following compound are · DEC 2016
ABC26OR0047 · Correct match for the products of the reactions in Column A with the properties in Column B is (115) 1. i - P, ii - S, iii - R, iv - Q 2. i… · DEC 2016self-practice
ABC26OR0054 · For the following compounds, the correct order of reactivity towards nucleophilic acyl substitution is · JUNE 2018
ABC26OR0061 · In the following equilibrium, conformer B is more stable than A when R is · JUNE 2019
ABC26OR0064 · The correct order for the rate of thermal decarboxylation of the following compounds is A B C · DEC 2019
ABC26OR0067 · The stereochemical relationship of Ha and Hb in the following is · DEC 2019
ABC26OR0070 · The synthetic equivalent of given synthon is C=O · DEC 2019
ABC26OR0071 · The number of geometrical isomers of the complex [RhH(C CR)2 (PMe3 )3 ] · DEC 2019
Inductive Resonance Effects
ABC26OR0775 · The correct statement describing the relationship between ; is · 2005-2022
Nomenclature Polycyclics
ABC26OR0008 · The IUPAC name of the following compound is · JUNE 2011
ABC26OR0012 · The IUPAC name of the compound given below is: · JUNE 2012
ABC26OR0018 · The IUPAC name for the compound given below is · JUNE 2013
ABC26OR0023 · The IUPAC name of the compound given below is · DEC 2013
ABC26OR0048 · The IUPAC name of the following compound is · JUNE 2017
ABC26OR0066 · The correct IUPAC name for the following molecule is · DEC 2019
Stereochemistry R S E Z
ABC26OR0002 · The two compounds given below are and · JUNE 2011
ABC26OR0009 · Among A-C, the compounds which can exhibit optical activity are · JUNE 2011
ABC26OR0011 · An optically active compound enriched with R-enantiomer (60% ee) exhibited [ alpha ]D+90 . If the [ alpha ]D value of the sample is -135… · JUNE 2011
ABC26OR0013 · Epoxidation of (R)-cyclohex-2-enol with peracetic acid yields a 95:5 mixture of compounds A and B. Compounds A and B are · JUNE 2012
ABC26OR0015 · The absolute configuration at the two chiral centres of (-)-camphore is: · DEC 2012
ABC26OR0788 · The correct statement(s) about the following species is(are) (I) (II) (III) · 2005-2022self-practice
ABC26OR0026 · The absolute configuration of the two stereogenic (chiral) centres in the following molecule is · DEC 2013
ABC26OR0027 · The correct statement about the following molecule is · DEC 2013
ABC26OR0034 · The correct relation between the following compounds is · JUNE 2015
ABC26OR0037 · Identify two enantiomers among the following compounds · JUNE 2015
ABC26OR0044 · The correct statement about the following compound is · DEC 2016
ABC26OR0053 · The number of optically active steroisomers possible for CH3-CH(OH)-CH(OH)-CH(OH)-CH3 is · DEC 2017
ABC26OR0059 · Oxidation of A with HNO3 / H2 O provides the product (s), which is (are) A · DEC 2018
ABC26OR0060 · Among the following, the optically active compound is · DEC 2018
ABC26OR0062 · The relationship between A and B is A B · JUNE 2019