Correct statements regarding alkyl halides (R - X) among the...

Statement A is correct. Alcoholic KOH provides alkoxide ions which are stronger bases than hydroxide ions. Furthermore, alcohol is a less polar solvent than water, which decreases the solvation of the base, making it more effective for elimination reactions over substitution.

Statement B is incorrect. The reactivity towards the $S_N^1$ mechanism depends on the stability of the intermediate carbocation. The carbocation $C_6H_5-\overset{+}{C}H-C_6H_5$ is more stable than $C_6H_5-\overset{+}{C}H_2$ due to extended resonance stabilization from two phenyl rings. Thus, $C_6H_5-CHCl-C_6H_5$ is more reactive than $C_6H_5-CH_2-Cl$.

Statement C is incorrect. Aryl halides are much less reactive towards nucleophilic substitution than alkyl halides due to the partial double bond character of the C-X bond arising from resonance, as well as the $sp^2$ hybridization of the carbon atom.

Statement D is incorrect. Allyl chloride ($CH_2=CH-CH_2-Cl$) contains a carbon-carbon double bond, making it a haloalkene, not a haloalkyne.

Statement E is correct. Alkyl chlorides ($R-Cl$) can be easily prepared from alcohols ($R-OH$) using $SOCl_2$. However, phenols ($Ar-OH$) do not react with $SOCl_2$ to give aryl chlorides because the C-O bond in phenol has a partial double bond character due to resonance, making it difficult to cleave.

Therefore, only statements A and E are correct.

Answer: A and E Only