Chemistry questions
29404 published questions with worked solutions.
- How many enantiomeric pairs are obtained by monochlorination of 2, 3-dimethylbutane?
- Arrange the following : (I) CH_3CH_2CH_2CH_2Cl (II) CH_3CH_2-CHCl-CH_3 (III) (CH_3)_2CHCH_2Cl (IV) (CH_3)_3C-Cl In order of...
- Which of the following is correct order of decreasing S_N2 reactivity?
- The correct increasing order of reactivity of halides for S_N1 reaction is
- An optically active halide when allowed to react with CN^- gives a racemic mixture. The halide is most likely to be
- In nucleophilic aliphatic substitution, the nucleophiles are generally
- t-Butyl chloride reacts with OH^- by S_N1 mechanism with rate [t-butyl chloride]. One of the reasons for the reaction to be of...
- If a carbon atom is attached to -H , -COOH and -OCOC_2H_5 number of chiral C-atoms in compound is
- Glucose has _____ optical isomers
- Optical isomers which are non-superimposable mirror images of each other are called
- A S_N2 reaction at an asymmetric carbon of a compound always gives
- Tertiary alkyl halides are practically inert to substitution by S_N2 mechanism because of
- Among the following four structures (I to IV): (I) C_2H_5-CH(CH_3)-C_3H_7 (II) CH_3-C(=O)-CH(CH_3)-C_2H_5 (III) H-C^+(H)-H...
- A mixture of equal parts of (+) and (-) enantiomers is called
- Backside displacement is observed in all S_N2 reactions because
- Which of the following cannot be given to exemplify chiral structure?
- Which of the following is the correct order of decreasing reactivity towards nucleophilic substitution?
- The number of enantiomers of the compound CH_3CHBrCHBrCOOH is
- The number of optical isomers formed by hydrogenation of the compound (CH_3)_2C=CHCH_3 are
- Which of the following compounds can exhibit both geometrical isomerism and enantiomerism?