Question

Why does triphenylmethyl cation more stable than methyl cation??

Answer 1

Triphenylmethyl cation is more stable than the methyl cation. This is due to the resonance. Phenyl rings are electron rich, so they can pas the electron density toward the carbocation. In triphenyl methyl cation, the positive charge is stabilised by the resonance through the 3 phenyl ring attached to it.
In simple words tertiary carbocation is more stable than the primary carbocation.