Haloalkanes and Haloarenes questions
1135 published questions with worked solutions.
- 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...
- 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
- Backside displacement is observed in all S_N2 reactions because
- Which of the following is the correct order of decreasing reactivity towards nucleophilic substitution?
- S_N1 reactions occur through the intermediate formation of
- The increasing order of reactivity towards S_N2 reactivity is
- S_N1 reactions are favoured by
- Chlorination of chlorobenzene in presence of Fe gives
- Replacement of Cl of chlorobenzene to give phenol requires drastic conditions but chlorine of 2, 4-dinitrochlorobenzene is...
- The reaction of an aromatic halogen compound with an alkyl halide in presence of sodium and ether is called
- Fittig reaction can be used to prepare
- Which of the following is least reactive towards nucleophilic displacement reaction when treated with aqueous KOH?
- Freon (dichlorodifluoro methane) is used
- The reactivity of methyl chloride, propyl chloride and chlorobenzene are in the order
- Chlorobenzene on fusing with solid NaOH gives
- In fire extinguisher, pyrene is
- Depletion of ozone layer is caused by
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