Question

Isn't the mechanism of aqueous sodium hydroxide and 1-bromobutane involves both heterolytic bond fission and attacking by a nucleophile?

Answer 1

attack by a nucleophile on a carbon atom with a partial positive charge

heterolytic bond fission and attack by a nucleophile on a carbocation

Answer 2

Explanation:

Well your thinking is absolutely right but only for tertiary halogenoalkane as this is a prinary halogenoalkane it will follow SN2 mechamism. In which necleophile attacks on a partial positive carbon