Why carbocation is reactive ?

Question

Carbocation is positive charge carbon atom it contains 6 electrons . As octet of carbon atom is incomplete so it is reactive .

Answer 1

That's right. A carbocation is a positively charged carbon atom with fewer than the usual 8 electrons needed for a stable octet—typically, it has only 6 electrons, meaning it forms 3 bonds instead of 4. This lack of electrons makes the carbocation highly unstable and very reactive, since it wants regain stability by accepting a pair of electrons from another molecule that can readily donate electrons (called a nucleophile).