Haloalkanes and...

The atom which defines the structure of a family of organic compounds and their properties is called ___________

In S_N1 reaction, racemisation occurs if the reaction occurs at a stereogenic centre, however, 50:50 mixture of enantiomers are rarely obtained, why?

Pick out the most reactive alkyl halide for an S_N1 reaction.

Pick out the compound which reacts fastest in the presence of AgNO₃.

From the following, pick out the explanation for why molecule Y hydrolyses faster than molecule Z.

Which of the following statement(s) is/are true for S_N1 reaction?

I. The rate of S_N1 reaction depends on concentration of alkyl halide
II. The rate of S_N1 reaction depends on concentration of nucleophile
III. S_N1 reactions of alkyl halides are favoured by non-polar solvents

From the following, pick out the potential energy profile for a S_N1 reaction.

The most and least reactive electrophiles respectively in a S_N1 reaction are

Pick out the strongest substrate(s) for a S_N1 reaction.

Pick out the following factor(s) which promote a S_N1 reaction :

I. Temperature
II. Concentration of nucleophile
III. Concentration of alkyl halide
IV. Aprotic solvents

Which of the following alkyl halides is respectively most and least electrophilic in S_N1 reaction?

Which of the following is true regarding a S_N1 reaction?

Rank the following molecules increasing in order of relative rate of SN1 solvolysis with methanol and heat.

Which is the most likely product when the following iodide is heated with water?

What is the correct order of reactivity of the followings in hydrolysis reaction at elevated temperature?

Statement Type

Direction (Q. Nos. 16 and 17) This section is based on Statement I and Statement II. Select the correct answer from the codes given below.

Q.

Consider the following two bromides I and II, undergoing solvolysis reaction in boiling ethanol :

Statement I : I is less reactive than II in the given solvolysis reaction.

Statement II : Resonance stabilisation available with the intermediate formed from II is the important driving force.

Statement I : When 3-bromo propene, which contain a labelled ¹³C at C-1 position is refluxed with methanol, following products were obtained.

Statement II : Methanol has an acidic proton bonded to oxygen.