Class 12 NEET Chemistry Haloalkanes and Haloarenes

SN1 reactions proceed via the formation of a carbocation intermediate.
More stable is the carbocation more reactive is the alkyl/aryl halide towards SN1.
In C6H5C+(CH3)(C6H5) carbocation, the two phenyl rings by their −R effect and −CH3 by its +I effect diminish the positive charge and make it stable.