Which of the following statements related to s n1 reactions is not true? - the heterolysis of a bond between atoms which do not bear formal charges always produces a cation and an anion - the charged carbon atom of a carbocation has a complete octet of valence shell electrons - carbocations are lewis acids - nucleophiles seek centers of low electron density

The charged carbon atom of a carbocation has a complete octet of valence shell electrons

Explanation:

A charged carbon atom of a carbocation has a valence shell that is not filled, that's why it acts as an electrophile (or a Lewis base). This unfilled valence shell is also the reason of the nucleophilic attack that takes place during the second step of a SN1 reaction.

n has four pairs of electrons in the valence shell, electrons repel one another ,n has 7 protons in its nucleus, and since n has 7 protons, it must fill the second shell, giving it 4 pairs of electrons. the electrons form 3 bonds and 1 lone pair of electrons. each pair of electrons repels the other pairs, so they are equally far apart.

so all of the above