What is the hybridization of the positively charged carbon in the carbocation showed below?

Question

Quizplus · Accepted Answer

The positively charged carbon in the carbocation has three attached atoms/groups. Therefore, its hybridization is determined by its steric number, which is 4 in this case. According to the hybridization formula, hybridization = s + p - 1, where s is the number of lone pairs and p is the number of bonded atoms/groups. Substituting the values, we get hybridization = 0 + 2 + 1 = 3, which corresponds to sp2. However, since one of the attached groups (sulfur) is larger than a typical sp2 hybridized atom (such as carbon or nitrogen), the hybridization is modified to sp².

What Is the Hybridization of the Positively Charged Carbon in the Carbocation