Organic Chemistry

Reagents, Reaction Mechanisms & Named Reactions

177 questions in this chapter, page 1 of 4.

Study loop for Reagents, Reaction Mechanisms & Named Reactions

1. Practise the PYQsPrevious-year questions, with answers

Carbonyl Chemistry

ABC26OR0414 · E1cb mechanism is followed in the reaction of: · DEC 2019

Named Reactions

ABC26OR0174 · The major product formed in the following reaction is: + · JUNE 2011
ABC26OR0175 · The major product formed in the following reaction is: PhSNa · JUNE 2011
ABC26OR0178 · The major product formed in the following reaction is: 2. MeI · JUNE 2011
ABC26OR0182 · The major product formed in the following reaction is · DEC 2011
ABC26OR0183 · The major product formed in the following reaction is [-70°C]LiAlH4 · DEC 2011
ABC26OR0194 · The major product formed in the following reaction is: · JUNE 2012
ABC26OR0195 · The major product formed in the following reaction is: · JUNE 2012
ABC26OR0196 · The major product formed in the following reaction is: 1. CF3CO3H 2. H3O+ · JUNE 2012
ABC26OR0202 · The major product formed in the following reaction is: 1. DIBAL (1 eq.) 2. CH2=CHMgBr 3. PCC · JUNE 2012
ABC26OR0209 · The major product formed in the following reaction is [2. H3O+]1. KH/THF, Delta · DEC 2012
ABC26OR0216 · The major product formed in the following reaction is: 1. Li, liq. NH3, t-BuOH · DEC 2012
ABC26OR0217 · The major product formed in the following reaction is: 1. CH3CO3H · JUNE 2013
ABC26OR0219 · The major product formed in the following reaction is: 1. NaH, CS2, MeI · JUNE 2013
ABC26OR0220 · The major product formed in the following reaction is: + 1. Heat · DEC 2013
ABC26OR0222 · The major product formed in the following reaction is: 1. Hg(OAc)2, H2SO4 · DEC 2013
ABC26OR0241 · The major product formed in the following reaction is: 1. H3O+, h nu 2. NaOH · DEC 2014
ABC26OR0248 · The major product of the following reaction is: · DEC 2014
ABC26OR0250 · The major product of the following reaction is: 1. Methoxybenzaldehyde, H+ 2. DIBAL-H, -78 to 40°C · DEC 2014
ABC26OR0251 · The major product of the following reaction is: 1. Zn, AcOH · DEC 2014
ABC26OR0256 · The major product formed in following reaction is · JUNE 2015
ABC26OR0264 · The major product formed in the following reaction is [CH2Cl2, reflux]Rh2(OAc)4 · DEC 2015
ABC26OR0287 · The major product formed in the following reaction is: EtOH · JUNE 2016
ABC26OR0296 · The correct reagent combination to effect the following reaction is: → · JUNE 2016
ABC26OR0309 · The most stable product formed in the following reaction is · DEC 2016
ABC26OR0312 · The major product formed in the following reaction is: ii) ICH2CH2Cl · DEC 2016
ABC26OR0322 · The major product in the following reaction is THF, r.t · DEC 2016
ABC26OR0325 · The correct starting compound A in the following reaction is (A) cat. CH3CH2CO2H, heat · DEC 2016
ABC26OR0327 · The major product in the following reaction is H+ · DEC 2016
ABC26OR0336 · The correct combination of reagents to effect the following reaction is: → · JUNE 2017
ABC26OR0354 · Correct sequence of steps involved in the following transformation is · DEC 2017
ABC26OR0362 · The major product formed in the following reaction is: · JUNE 2018
ABC26OR0363 · The major product formed in the following reaction is: i) n-BuLi, -80°C ii) NH4Cl · JUNE 2018
ABC26OR0373 · The major heterocyclic compound formed in the following reaction is 2. H2, Pd/C, MeOH · JUNE 2018
ABC26OR0384 · The major product formed in the following reaction is: i. I2, pyridine iii. NaBH4, CeCl3· 7H2O · DEC 2018
ABC26OR0398 · The major product in the following reaction is: electrolysis · 2019
ABC26OR0419 · The major product in the following reaction is: CF3CO2H Cbz = · DEC 2019
ABC26OR0420 · The major product in the following reaction is: H2 (3 atm) · DEC 2019
ABC26OR0421 · The major product formed in the following reaction is [2. H2O2, NaOH]1. CHCl3, KOH · DEC 2019
ABC26OR0424 · The major product in the following reaction is: 3. MeP(OEt)2 4. H3O+ · DEC 2019
ABC26OR0427 · The major product in the following reaction is: cat. NaCN · DEC 2019
ABC26OR0440 · The major product in the following reaction is CSA = camphorsulfonic acid · DEC 2019
ABC26OR0442 · The structure of A in the following reaction is A [2. NaOEt, EtOH]1. i) h nu ii) O3, Me2S · DEC 2019
ABC26OR0444 · The correct sequence of reactions involved in the following transformation is: · DEC 2019

Reagents, Reaction Mechanisms & Named Reactions – General

ABC26OR0170 · The major product formed in the reaction given below is: I2/KI · JUNE 2011 self-practice
ABC26OR0627 · (E)-3-bromo-3-hexene when treated with CH3O- in CH3OH gives · 2000-2022
ABC26OR0662 · The major product P of the following reaction is · 2000-2022
ABC26OR0831 · For the reaction shown below if the concentration of KCN is increased four times, the rate of the reaction will be : + KCN + KCl · 2005-2022
ABC26OR0857 · The rate of nitration of the following aromatic compounds decreases in the order (i) benzene (ii) pyridine (iii) thiophene (iv) toluene · 2005-2022
ABC26OR0884 · The main product obtained in the following reaction is [?] · 2005-2022