Chemistry - Halogen Derivative Question with Solution | TestHub

A benzylic halide features a halogen atom bonded to an ${\mathrm{sp}}^3$-hybridized benzylic carbon, which is the carbon attached directly to an aromatic ring.

In ${\mathrm{C}}_6{\mathrm{H}}_5-{\mathrm{CH}}_2-\mathrm{X}$, the halogen is bonded to an ${\mathrm{sp}}^3$ carbon that is benzylic. This matches the definition.

${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{X}$ is an aryl halide, with halogen attached to ${\mathrm{sp}}^2$ aromatic carbon.

${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{CH}=\mathrm{CH}-\mathrm{X}$ is a vinylic halide, with halogen on ${\mathrm{sp}}^2$ vinylic carbon.

${\mathrm{C}}_6{\mathrm{H}}_5-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{X}$ has a halogen on a non-benzylic ${\mathrm{sp}}^3$ carbon.

The benzylic halide is $\boxed{A}$.