Chemistry questions
29404 published questions with worked solutions.
- Fluorobenzene ( C_6H_5F ) can be synthesised in the laboratory
- Which of the following statements is false about group of o-nitrochlorobenzene?
- Which of the following mechanism is followed in halogenation, sulphonation and Friedel-Crafts reaction of haloarenes?
- Chlorobenzene can be converted into toluene by
- Chlorobenzene on treatment with sodium in dry ether gives diphenyl. The name of the reaction is
- The reaction of toluene with Cl_2 in the presence of FeCl_3 gives predominantly
- For the preparation of p-nitroiodobenzene from p-nitroaniline, the best method is
- Gammexane is chemically known as
- Halogen atom being slightly ...A... is ...B... directing. Here, A and B refer to
- Which one of the following is not formed when a mixture of methyl bromide and bromobenzene is heated with sodium metal in the...
- Reactivity order of halides for dehydrohalogenation is
- Following is the substitution reaction in which - CN replaces - Cl . R - Cl + KCN [ Alcoholic ] R - CN + KCl To obtain...
- CH_3Br + Nu^- CH_3 - Nu + Br^- The decreasing order of the rate of the above reaction with nucleophiles ( Nu^- ) A to D is [ Nu^-...
- Which reagent will you use for the following conversion? CH_3CH_2CH_2CH_3 CH_3CH_2CH_2CH_2Cl + CH_3CH_2CHClCH_3
- The order of reactivity of the following alcohols with halogen acids is I. CH_3CH_2-CH_2-OH II. CH_3CH_2-CH(CH_3)-OH III....
- When H_2 is added to two isomeric alkenes A and B having molecular formula C_5H_9Cl , A gives optically inactive compound while B...
- In the following sequence of reaction, CH_3 - Br KCN A H_3O^+ B [Ether] LiAlH_4 C The product C is
- Carbon-halogen bond lengths increases in the order
- An equimolar mixture of toluene and chlorobenzene is treated with a mixture of conc. H_2SO_4 and conc. HNO_3 . Indicate the...
- The order of reactivities of methyl halides in the formation of Grignard reagent is