Answer:
2,2-dimethyl-4-propyloctane has SIX secondary carbons.
Explanation:
Secondary Carbon:
In organic compounds secondary carbon is that carbon which is bonded to two carbon atoms and two hydrogen atoms. Below Red arrows indicate secondary carbons.
Primary Carbon:
Primary carbon is that carbon which is further attached to one carbon atom and three hydrogen atoms. Below in structure Blue arrows indicate primary carbons.
Tertiary Carbon:
These are those carbons which are bonded to to at least three carbon atoms. Below Green arrows indicate tertiary carbons.
