Answer the following:

(i) Haloalkanes easily dissolves in organic solvents, why?

(ii)What is known as a racemic mixture? Give an example.

(iii)Of the two bromo-derivatives, C₆H₅CH(CH₃)Br and C₆H₅CH( C₆H₅)Br, which one is more reactive in SN₁ substitution reaction and why?

(i) Haloalkanes dissolve in organic solvents because the new intermolecular attraction between haloalkanes and organic solvent molecules have the same strength as the one being broken in the separate haloalkanes and solvent molecules.

(ii) Racemic mixture is an equimolar mixture of two enantiomers and hence it is optically inactive. The example of racemic mixture is ± butan-2-ol.

(iii) The carbocation intermediate derived from C₆H₅CH(C₆H₅)Br is more stable as compared to the carbocation obtained from C₆H₅CH(CH₃)Br because it is stabilised by two phenyl groups due to resonance. Due to this reason, C₆H₅CH(C₆H₅)Br is more reactive in SN₁ substitution reaction than C₆H₅CH(CH₃)Br